Index: openacs-4/packages/acs-subsite/www/resources/core.js
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-subsite/www/resources/core.js,v
diff -u -r1.17.2.1 -r1.17.2.2
--- openacs-4/packages/acs-subsite/www/resources/core.js	20 Aug 2020 13:49:09 -0000	1.17.2.1
+++ openacs-4/packages/acs-subsite/www/resources/core.js	20 Aug 2020 13:50:06 -0000	1.17.2.2
@@ -1,4 +1,3 @@
-
 /* The function acs_Focus is included in blank-master.tcl
 function acs_Focus(form_name, element_name) {
     if (document.forms == null) return;
@@ -101,20 +100,20 @@
     }
 }
 
- /* RTE functions */ 	 
- function acs_rteSubmitForm() { 	 
-         updateRTEs(); 	 
-         return true; 	 
- } 	 
-  	 
- function acs_rteInit(form_name) { 	 
- // sets onsubmit to function for the given form name 	 
-     if (document.forms == null) return; 	 
-     if (document.forms[form_name] == null) return; 	 
-     document.forms[form_name].onsubmit = acs_rteSubmitForm; 	 
- } 	 
- 
+ /* RTE functions */
+ function acs_rteSubmitForm() {
+         updateRTEs();
+         return true;
+ }
 
+ function acs_rteInit(form_name) {
+ // sets onsubmit to function for the given form name
+     if (document.forms == null) return;
+     if (document.forms[form_name] == null) return;
+     document.forms[form_name].onsubmit = acs_rteSubmitForm;
+ }
+
+
 /* HTMLArea (part of Richtext Widget) Support */
 
 function acs_initHtmlArea(editor_var, elementid) {
@@ -187,13 +186,13 @@
         console.log("no form named " + formName + " found");
         return;
     }
-    
+
     for (var form of relevantForms) {
         var fd = new FormData(form);
         for (var pair of fd.entries()) {
             //console.log(pair[0] + ': ' + pair[1]);
             formData.append(pair[0], pair[1]);
-        }        
+        }
     }
 
     var xhr = new XMLHttpRequest();
@@ -210,12 +209,12 @@
 }
 
 function acs_KeypressGoto(theUrl, event) {
-	var key;
-    	if (event) {
-	      if (event.which == 13) {
-	        location.href = theUrl;
-      	      }
-    	}
+        var key;
+        if (event) {
+              if (event.which == 13) {
+                location.href = theUrl;
+              }
+        }
 }
 
 
@@ -233,54 +232,54 @@
 
 /** The Calendar object constructor. */
 Calendar = function (mondayFirst, dateStr, onSelected, onClose, dateFormat) {
-	// member variables
-	this.activeDiv = null;
-	this.currentDateEl = null;
-	this.checkDisabled = null;
-	this.timeout = null;
-	this.onSelected = onSelected || null;
-	this.onClose = onClose || null;
-	this.dragging = false;
-	this.hidden = false;
-	this.minYear = 1970;
-	this.maxYear = 2050;
-	this.dateFormat = dateFormat;
-	this.ttDateFormat = Calendar._TT["TT_DATE_FORMAT"];
-	this.isPopup = true;
-	this.weekNumbers = true;
-	this.mondayFirst = mondayFirst;
-	this.dateStr = dateStr;
-	this.ar_days = null;
-	// HTML elements
-	this.table = null;
-	this.element = null;
-	this.tbody = null;
-	this.firstdayname = null;
-	// Combo boxes
-	this.monthsCombo = null;
-	this.yearsCombo = null;
-	this.hilitedMonth = null;
-	this.activeMonth = null;
-	this.hilitedYear = null;
-	this.activeYear = null;
-	// Information
-	this.dateClicked = false;
+        // member variables
+        this.activeDiv = null;
+        this.currentDateEl = null;
+        this.checkDisabled = null;
+        this.timeout = null;
+        this.onSelected = onSelected || null;
+        this.onClose = onClose || null;
+        this.dragging = false;
+        this.hidden = false;
+        this.minYear = 1970;
+        this.maxYear = 2050;
+        this.dateFormat = dateFormat;
+        this.ttDateFormat = Calendar._TT["TT_DATE_FORMAT"];
+        this.isPopup = true;
+        this.weekNumbers = true;
+        this.mondayFirst = mondayFirst;
+        this.dateStr = dateStr;
+        this.ar_days = null;
+        // HTML elements
+        this.table = null;
+        this.element = null;
+        this.tbody = null;
+        this.firstdayname = null;
+        // Combo boxes
+        this.monthsCombo = null;
+        this.yearsCombo = null;
+        this.hilitedMonth = null;
+        this.activeMonth = null;
+        this.hilitedYear = null;
+        this.activeYear = null;
+        // Information
+        this.dateClicked = false;
 
-	// one-time initializations
-	if (!Calendar._DN3) {
-		// table of short day names
-		var ar = new Array();
-		for (var i = 8; i > 0;) {
-			ar[--i] = Calendar._DN[i].substr(0, 3);
-		}
-		Calendar._DN3 = ar;
-		// table of short month names
-		ar = new Array();
-		for (var i = 12; i > 0;) {
-			ar[--i] = Calendar._MN[i].substr(0, 3);
-		}
-		Calendar._MN3 = ar;
-	}
+        // one-time initializations
+        if (!Calendar._DN3) {
+                // table of short day names
+                var ar = new Array();
+                for (var i = 8; i > 0;) {
+                        ar[--i] = Calendar._DN[i].substr(0, 3);
+                }
+                Calendar._DN3 = ar;
+                // table of short month names
+                ar = new Array();
+                for (var i = 12; i > 0;) {
+                        ar[--i] = Calendar._MN[i].substr(0, 3);
+                }
+                Calendar._MN3 = ar;
+        }
 };
 
 // ** constants
@@ -290,7 +289,7 @@
 
 /// detect a special case of "web browser"
 Calendar.is_ie = ( /msie/i.test(navigator.userAgent) &&
-		   !/opera/i.test(navigator.userAgent) );
+                   !/opera/i.test(navigator.userAgent) );
 
 // short day names array (initialized at first constructor call)
 Calendar._DN3 = null;
@@ -302,113 +301,113 @@
 //        library, at some point.
 
 Calendar.getAbsolutePos = function(el) {
-	var r = { x: el.offsetLeft, y: el.offsetTop };
-	if (el.offsetParent) {
-		var tmp = Calendar.getAbsolutePos(el.offsetParent);
-		r.x += tmp.x;
-		r.y += tmp.y;
-	}
-	return r;
+        var r = { x: el.offsetLeft, y: el.offsetTop };
+        if (el.offsetParent) {
+                var tmp = Calendar.getAbsolutePos(el.offsetParent);
+                r.x += tmp.x;
+                r.y += tmp.y;
+        }
+        return r;
 };
 
 Calendar.isRelated = function (el, evt) {
-	var related = evt.relatedTarget;
-	if (!related) {
-		var type = evt.type;
-		if (type == "mouseover") {
-			related = evt.fromElement;
-		} else if (type == "mouseout") {
-			related = evt.toElement;
-		}
-	}
-	while (related) {
-		if (related == el) {
-			return true;
-		}
-		related = related.parentNode;
-	}
-	return false;
+        var related = evt.relatedTarget;
+        if (!related) {
+                var type = evt.type;
+                if (type == "mouseover") {
+                        related = evt.fromElement;
+                } else if (type == "mouseout") {
+                        related = evt.toElement;
+                }
+        }
+        while (related) {
+                if (related == el) {
+                        return true;
+                }
+                related = related.parentNode;
+        }
+        return false;
 };
 
 Calendar.removeClass = function(el, className) {
-	if (!(el && el.className)) {
-		return;
-	}
-	var cls = el.className.split(" ");
-	var ar = new Array();
-	for (var i = cls.length; i > 0;) {
-		if (cls[--i] != className) {
-			ar[ar.length] = cls[i];
-		}
-	}
-	el.className = ar.join(" ");
+        if (!(el && el.className)) {
+                return;
+        }
+        var cls = el.className.split(" ");
+        var ar = new Array();
+        for (var i = cls.length; i > 0;) {
+                if (cls[--i] != className) {
+                        ar[ar.length] = cls[i];
+                }
+        }
+        el.className = ar.join(" ");
 };
 
 Calendar.addClass = function(el, className) {
-	Calendar.removeClass(el, className);
-	el.className += " " + className;
+        Calendar.removeClass(el, className);
+        el.className += " " + className;
 };
 
 Calendar.getElement = function(ev) {
-	if (Calendar.is_ie) {
-		return window.event.srcElement;
-	} else {
-		return ev.currentTarget;
-	}
+        if (Calendar.is_ie) {
+                return window.event.srcElement;
+        } else {
+                return ev.currentTarget;
+        }
 };
 
 Calendar.getTargetElement = function(ev) {
-	if (Calendar.is_ie) {
-		return window.event.srcElement;
-	} else {
-		return ev.target;
-	}
+        if (Calendar.is_ie) {
+                return window.event.srcElement;
+        } else {
+                return ev.target;
+        }
 };
 
 Calendar.stopEvent = function(ev) {
-	if (Calendar.is_ie) {
-		window.event.cancelBubble = true;
-		window.event.returnValue = false;
-	} else {
-		ev.preventDefault();
-		ev.stopPropagation();
-	}
-	return false;
+        if (Calendar.is_ie) {
+                window.event.cancelBubble = true;
+                window.event.returnValue = false;
+        } else {
+                ev.preventDefault();
+                ev.stopPropagation();
+        }
+        return false;
 };
 
 Calendar.addEvent = function(el, evname, func) {
-	if (el.attachEvent) { // IE
-		el.attachEvent("on" + evname, func);
-	} else if (el.addEventListener) { // Gecko / W3C
-		el.addEventListener(evname, func, true);
-	} else { // Opera (or old browsers)
-		el["on" + evname] = func;
-	}
+        if (el.attachEvent) { // IE
+                el.attachEvent("on" + evname, func);
+        } else if (el.addEventListener) { // Gecko / W3C
+                el.addEventListener(evname, func, true);
+        } else { // Opera (or old browsers)
+                el["on" + evname] = func;
+        }
 };
 
 Calendar.removeEvent = function(el, evname, func) {
-	if (el.detachEvent) { // IE
-		el.detachEvent("on" + evname, func);
-	} else if (el.removeEventListener) { // Gecko / W3C
-		el.removeEventListener(evname, func, true);
-	} else { // Opera (or old browsers)
-		el["on" + evname] = null;
-	}
+        if (el.detachEvent) { // IE
+                el.detachEvent("on" + evname, func);
+        } else if (el.removeEventListener) { // Gecko / W3C
+                el.removeEventListener(evname, func, true);
+        } else { // Opera (or old browsers)
+                el["on" + evname] = null;
+        }
 };
 
 Calendar.createElement = function(type, parent) {
-	var el = null;
-	if (document.createElementNS) {
-		// use the XHTML namespace; IE won't normally get here unless
-		// _they_ "fix" the DOM2 implementation.
-		el = document.createElementNS("http://www.w3.org/1999/xhtml", type);
-	} else {
-		el = document.createElement(type);
-	}
-	if (typeof parent != "undefined") {
-		parent.appendChild(el);
-	}
-	return el;
+        var el = null;
+        if (document.createElementNS) {
+                // use the XHTML namespace; IE won't normally get here unless
+                // _they_ "fix" the DOM2 implementation.
+                el = document.createElementNS("http://www.w3.org/1999/xhtml", type);
+        } else {
+                el = document.createElement(type);
+        }
+        if (typeof parent != "undefined") {
+                parent.appendChild(el);
+        }
+        return el;
 };
 
 // END: UTILITY FUNCTIONS
@@ -417,396 +416,396 @@
 
 /** Internal -- adds a set of events to make some element behave like a button. */
 Calendar._add_evs = function(el) {
-	with (Calendar) {
-		addEvent(el, "mouseover", dayMouseOver);
-		addEvent(el, "mousedown", dayMouseDown);
-		addEvent(el, "mouseout", dayMouseOut);
-		if (is_ie) {
-			addEvent(el, "dblclick", dayMouseDblClick);
-			el.setAttribute("unselectable", true);
-		}
-	}
+        with (Calendar) {
+                addEvent(el, "mouseover", dayMouseOver);
+                addEvent(el, "mousedown", dayMouseDown);
+                addEvent(el, "mouseout", dayMouseOut);
+                if (is_ie) {
+                        addEvent(el, "dblclick", dayMouseDblClick);
+                        el.setAttribute("unselectable", true);
+                }
+        }
 };
 
 Calendar.findMonth = function(el) {
-	if (typeof el.month != "undefined") {
-		return el;
-	} else if (typeof el.parentNode.month != "undefined") {
-		return el.parentNode;
-	}
-	return null;
+        if (typeof el.month != "undefined") {
+                return el;
+        } else if (typeof el.parentNode.month != "undefined") {
+                return el.parentNode;
+        }
+        return null;
 };
 
 Calendar.findYear = function(el) {
-	if (typeof el.year != "undefined") {
-		return el;
-	} else if (typeof el.parentNode.year != "undefined") {
-		return el.parentNode;
-	}
-	return null;
+        if (typeof el.year != "undefined") {
+                return el;
+        } else if (typeof el.parentNode.year != "undefined") {
+                return el.parentNode;
+        }
+        return null;
 };
 
 Calendar.showMonthsCombo = function () {
-	var cal = Calendar._C;
-	if (!cal) {
-		return false;
-	}
-	var cal = cal;
-	var cd = cal.activeDiv;
-	var mc = cal.monthsCombo;
-	if (cal.hilitedMonth) {
-		Calendar.removeClass(cal.hilitedMonth, "hilite");
-	}
-	if (cal.activeMonth) {
-		Calendar.removeClass(cal.activeMonth, "active");
-	}
-	var mon = cal.monthsCombo.getElementsByTagName("div")[cal.date.getMonth()];
-	Calendar.addClass(mon, "active");
-	cal.activeMonth = mon;
-	mc.style.left = cd.offsetLeft + "px";
-	mc.style.top = (cd.offsetTop + cd.offsetHeight) + "px";
-	mc.style.display = "block";
+        var cal = Calendar._C;
+        if (!cal) {
+                return false;
+        }
+        var cal = cal;
+        var cd = cal.activeDiv;
+        var mc = cal.monthsCombo;
+        if (cal.hilitedMonth) {
+                Calendar.removeClass(cal.hilitedMonth, "hilite");
+        }
+        if (cal.activeMonth) {
+                Calendar.removeClass(cal.activeMonth, "active");
+        }
+        var mon = cal.monthsCombo.getElementsByTagName("div")[cal.date.getMonth()];
+        Calendar.addClass(mon, "active");
+        cal.activeMonth = mon;
+        mc.style.left = cd.offsetLeft + "px";
+        mc.style.top = (cd.offsetTop + cd.offsetHeight) + "px";
+        mc.style.display = "block";
 };
 
 Calendar.showYearsCombo = function (fwd) {
-	var cal = Calendar._C;
-	if (!cal) {
-		return false;
-	}
-	var cal = cal;
-	var cd = cal.activeDiv;
-	var yc = cal.yearsCombo;
-	if (cal.hilitedYear) {
-		Calendar.removeClass(cal.hilitedYear, "hilite");
-	}
-	if (cal.activeYear) {
-		Calendar.removeClass(cal.activeYear, "active");
-	}
-	cal.activeYear = null;
-	var Y = cal.date.getFullYear() + (fwd ? 1 : -1);
-	var yr = yc.firstChild;
-	var show = false;
-	for (var i = 12; i > 0; --i) {
-		if (Y >= cal.minYear && Y <= cal.maxYear) {
-			yr.firstChild.data = Y;
-			yr.year = Y;
-			yr.style.display = "block";
-			show = true;
-		} else {
-			yr.style.display = "none";
-		}
-		yr = yr.nextSibling;
-		Y += fwd ? 2 : -2;
-	}
-	if (show) {
-		yc.style.left = cd.offsetLeft + "px";
-		yc.style.top = (cd.offsetTop + cd.offsetHeight) + "px";
-		yc.style.display = "block";
-	}
+        var cal = Calendar._C;
+        if (!cal) {
+                return false;
+        }
+        var cal = cal;
+        var cd = cal.activeDiv;
+        var yc = cal.yearsCombo;
+        if (cal.hilitedYear) {
+                Calendar.removeClass(cal.hilitedYear, "hilite");
+        }
+        if (cal.activeYear) {
+                Calendar.removeClass(cal.activeYear, "active");
+        }
+        cal.activeYear = null;
+        var Y = cal.date.getFullYear() + (fwd ? 1 : -1);
+        var yr = yc.firstChild;
+        var show = false;
+        for (var i = 12; i > 0; --i) {
+                if (Y >= cal.minYear && Y <= cal.maxYear) {
+                        yr.firstChild.data = Y;
+                        yr.year = Y;
+                        yr.style.display = "block";
+                        show = true;
+                } else {
+                        yr.style.display = "none";
+                }
+                yr = yr.nextSibling;
+                Y += fwd ? 2 : -2;
+        }
+        if (show) {
+                yc.style.left = cd.offsetLeft + "px";
+                yc.style.top = (cd.offsetTop + cd.offsetHeight) + "px";
+                yc.style.display = "block";
+        }
 };
 
 // event handlers
 
 Calendar.tableMouseUp = function(ev) {
-	var cal = Calendar._C;
-	if (!cal) {
-		return false;
-	}
-	if (cal.timeout) {
-		clearTimeout(cal.timeout);
-	}
-	var el = cal.activeDiv;
-	if (!el) {
-		return false;
-	}
-	var target = Calendar.getTargetElement(ev);
-	Calendar.removeClass(el, "active");
-	if (target == el || target.parentNode == el) {
-		Calendar.cellClick(el);
-	}
-	var mon = Calendar.findMonth(target);
-	var date = null;
-	if (mon) {
-		date = new Date(cal.date);
-		if (mon.month != date.getMonth()) {
-			date.setMonth(mon.month);
-			cal.setDate(date);
-			cal.dateClicked = false;
-			cal.callHandler();
-		}
-	} else {
-		var year = Calendar.findYear(target);
-		if (year) {
-			date = new Date(cal.date);
-			if (year.year != date.getFullYear()) {
-				date.setFullYear(year.year);
-				cal.setDate(date);
-				cal.dateClicked = false;
-				cal.callHandler();
-			}
-		}
-	}
-	with (Calendar) {
-		removeEvent(document, "mouseup", tableMouseUp);
-		removeEvent(document, "mouseover", tableMouseOver);
-		removeEvent(document, "mousemove", tableMouseOver);
-		cal._hideCombos();
-		_C = null;
-		return stopEvent(ev);
-	}
+        var cal = Calendar._C;
+        if (!cal) {
+                return false;
+        }
+        if (cal.timeout) {
+                clearTimeout(cal.timeout);
+        }
+        var el = cal.activeDiv;
+        if (!el) {
+                return false;
+        }
+        var target = Calendar.getTargetElement(ev);
+        Calendar.removeClass(el, "active");
+        if (target == el || target.parentNode == el) {
+                Calendar.cellClick(el);
+        }
+        var mon = Calendar.findMonth(target);
+        var date = null;
+        if (mon) {
+                date = new Date(cal.date);
+                if (mon.month != date.getMonth()) {
+                        date.setMonth(mon.month);
+                        cal.setDate(date);
+                        cal.dateClicked = false;
+                        cal.callHandler();
+                }
+        } else {
+                var year = Calendar.findYear(target);
+                if (year) {
+                        date = new Date(cal.date);
+                        if (year.year != date.getFullYear()) {
+                                date.setFullYear(year.year);
+                                cal.setDate(date);
+                                cal.dateClicked = false;
+                                cal.callHandler();
+                        }
+                }
+        }
+        with (Calendar) {
+                removeEvent(document, "mouseup", tableMouseUp);
+                removeEvent(document, "mouseover", tableMouseOver);
+                removeEvent(document, "mousemove", tableMouseOver);
+                cal._hideCombos();
+                _C = null;
+                return stopEvent(ev);
+        }
 };
 
 Calendar.tableMouseOver = function (ev) {
-	var cal = Calendar._C;
-	if (!cal) {
-		return;
-	}
-	var el = cal.activeDiv;
-	var target = Calendar.getTargetElement(ev);
-	if (target == el || target.parentNode == el) {
-		Calendar.addClass(el, "hilite active");
-		Calendar.addClass(el.parentNode, "rowhilite");
-	} else {
-		Calendar.removeClass(el, "active");
-		Calendar.removeClass(el, "hilite");
-		Calendar.removeClass(el.parentNode, "rowhilite");
-	}
-	var mon = Calendar.findMonth(target);
-	if (mon) {
-		if (mon.month != cal.date.getMonth()) {
-			if (cal.hilitedMonth) {
-				Calendar.removeClass(cal.hilitedMonth, "hilite");
-			}
-			Calendar.addClass(mon, "hilite");
-			cal.hilitedMonth = mon;
-		} else if (cal.hilitedMonth) {
-			Calendar.removeClass(cal.hilitedMonth, "hilite");
-		}
-	} else {
-		var year = Calendar.findYear(target);
-		if (year) {
-			if (year.year != cal.date.getFullYear()) {
-				if (cal.hilitedYear) {
-					Calendar.removeClass(cal.hilitedYear, "hilite");
-				}
-				Calendar.addClass(year, "hilite");
-				cal.hilitedYear = year;
-			} else if (cal.hilitedYear) {
-				Calendar.removeClass(cal.hilitedYear, "hilite");
-			}
-		}
-	}
-	return Calendar.stopEvent(ev);
+        var cal = Calendar._C;
+        if (!cal) {
+                return;
+        }
+        var el = cal.activeDiv;
+        var target = Calendar.getTargetElement(ev);
+        if (target == el || target.parentNode == el) {
+                Calendar.addClass(el, "hilite active");
+                Calendar.addClass(el.parentNode, "rowhilite");
+        } else {
+                Calendar.removeClass(el, "active");
+                Calendar.removeClass(el, "hilite");
+                Calendar.removeClass(el.parentNode, "rowhilite");
+        }
+        var mon = Calendar.findMonth(target);
+        if (mon) {
+                if (mon.month != cal.date.getMonth()) {
+                        if (cal.hilitedMonth) {
+                                Calendar.removeClass(cal.hilitedMonth, "hilite");
+                        }
+                        Calendar.addClass(mon, "hilite");
+                        cal.hilitedMonth = mon;
+                } else if (cal.hilitedMonth) {
+                        Calendar.removeClass(cal.hilitedMonth, "hilite");
+                }
+        } else {
+                var year = Calendar.findYear(target);
+                if (year) {
+                        if (year.year != cal.date.getFullYear()) {
+                                if (cal.hilitedYear) {
+                                        Calendar.removeClass(cal.hilitedYear, "hilite");
+                                }
+                                Calendar.addClass(year, "hilite");
+                                cal.hilitedYear = year;
+                        } else if (cal.hilitedYear) {
+                                Calendar.removeClass(cal.hilitedYear, "hilite");
+                        }
+                }
+        }
+        return Calendar.stopEvent(ev);
 };
 
 Calendar.tableMouseDown = function (ev) {
-	if (Calendar.getTargetElement(ev) == Calendar.getElement(ev)) {
-		return Calendar.stopEvent(ev);
-	}
+        if (Calendar.getTargetElement(ev) == Calendar.getElement(ev)) {
+                return Calendar.stopEvent(ev);
+        }
 };
 
 Calendar.calDragIt = function (ev) {
-	var cal = Calendar._C;
-	if (!(cal && cal.dragging)) {
-		return false;
-	}
-	var posX;
-	var posY;
-	if (Calendar.is_ie) {
-		posY = window.event.clientY + document.body.scrollTop;
-		posX = window.event.clientX + document.body.scrollLeft;
-	} else {
-		posX = ev.pageX;
-		posY = ev.pageY;
-	}
-	cal.hideShowCovered();
-	var st = cal.element.style;
-	st.left = (posX - cal.xOffs) + "px";
-	st.top = (posY - cal.yOffs) + "px";
-	return Calendar.stopEvent(ev);
+        var cal = Calendar._C;
+        if (!(cal && cal.dragging)) {
+                return false;
+        }
+        var posX;
+        var posY;
+        if (Calendar.is_ie) {
+                posY = window.event.clientY + document.body.scrollTop;
+                posX = window.event.clientX + document.body.scrollLeft;
+        } else {
+                posX = ev.pageX;
+                posY = ev.pageY;
+        }
+        cal.hideShowCovered();
+        var st = cal.element.style;
+        st.left = (posX - cal.xOffs) + "px";
+        st.top = (posY - cal.yOffs) + "px";
+        return Calendar.stopEvent(ev);
 };
 
 Calendar.calDragEnd = function (ev) {
-	var cal = Calendar._C;
-	if (!cal) {
-		return false;
-	}
-	cal.dragging = false;
-	with (Calendar) {
-		removeEvent(document, "mousemove", calDragIt);
-		removeEvent(document, "mouseover", stopEvent);
-		removeEvent(document, "mouseup", calDragEnd);
-		tableMouseUp(ev);
-	}
-	cal.hideShowCovered();
+        var cal = Calendar._C;
+        if (!cal) {
+                return false;
+        }
+        cal.dragging = false;
+        with (Calendar) {
+                removeEvent(document, "mousemove", calDragIt);
+                removeEvent(document, "mouseover", stopEvent);
+                removeEvent(document, "mouseup", calDragEnd);
+                tableMouseUp(ev);
+        }
+        cal.hideShowCovered();
 };
 
 Calendar.dayMouseDown = function(ev) {
-	var el = Calendar.getElement(ev);
-	if (el.disabled) {
-		return false;
-	}
-	var cal = el.calendar;
-	cal.activeDiv = el;
-	Calendar._C = cal;
-	if (el.navtype != 300) with (Calendar) {
-		addClass(el, "hilite active");
-		addEvent(document, "mouseover", tableMouseOver);
-		addEvent(document, "mousemove", tableMouseOver);
-		addEvent(document, "mouseup", tableMouseUp);
-	} else if (cal.isPopup) {
-		cal._dragStart(ev);
-	}
-	if (el.navtype == -1 || el.navtype == 1) {
-	    cal.timeout = setTimeout(function() {Calendar.showMonthsCombo();}, 250);
-	} else if (el.navtype == -2 || el.navtype == 2) {
-	    cal.timeout = setTimeout((el.navtype > 0) ? function() {Calendar.showYearsCombo(true);} : function() {Calendar.showYearsCombo(false);}, 250);
-	} else {
-		cal.timeout = null;
-	}
-	return Calendar.stopEvent(ev);
+        var el = Calendar.getElement(ev);
+        if (el.disabled) {
+                return false;
+        }
+        var cal = el.calendar;
+        cal.activeDiv = el;
+        Calendar._C = cal;
+        if (el.navtype != 300) with (Calendar) {
+                addClass(el, "hilite active");
+                addEvent(document, "mouseover", tableMouseOver);
+                addEvent(document, "mousemove", tableMouseOver);
+                addEvent(document, "mouseup", tableMouseUp);
+        } else if (cal.isPopup) {
+                cal._dragStart(ev);
+        }
+        if (el.navtype == -1 || el.navtype == 1) {
+            cal.timeout = setTimeout(function() {Calendar.showMonthsCombo();}, 250);
+        } else if (el.navtype == -2 || el.navtype == 2) {
+            cal.timeout = setTimeout((el.navtype > 0) ? function() {Calendar.showYearsCombo(true);} : function() {Calendar.showYearsCombo(false);}, 250);
+        } else {
+                cal.timeout = null;
+        }
+        return Calendar.stopEvent(ev);
 };
 
 Calendar.dayMouseDblClick = function(ev) {
-	Calendar.cellClick(Calendar.getElement(ev));
-	if (Calendar.is_ie) {
-		document.selection.empty();
-	}
+        Calendar.cellClick(Calendar.getElement(ev));
+        if (Calendar.is_ie) {
+                document.selection.empty();
+        }
 };
 
 Calendar.dayMouseOver = function(ev) {
-	var el = Calendar.getElement(ev);
-	if (Calendar.isRelated(el, ev) || Calendar._C || el.disabled) {
-		return false;
-	}
-	if (el.ttip) {
-		if (el.ttip.substr(0, 1) == "_") {
-			var date = null;
-			with (el.calendar.date) {
-				date = new Date(getFullYear(), getMonth(), el.caldate);
-			}
-			el.ttip = date.print(el.calendar.ttDateFormat) + el.ttip.substr(1);
-		}
-		el.calendar.tooltips.firstChild.data = el.ttip;
-	}
-	if (el.navtype != 300) {
-		Calendar.addClass(el, "hilite");
-		if (el.caldate) {
-			Calendar.addClass(el.parentNode, "rowhilite");
-		}
-	}
-	return Calendar.stopEvent(ev);
+        var el = Calendar.getElement(ev);
+        if (Calendar.isRelated(el, ev) || Calendar._C || el.disabled) {
+                return false;
+        }
+        if (el.ttip) {
+                if (el.ttip.substr(0, 1) == "_") {
+                        var date = null;
+                        with (el.calendar.date) {
+                                date = new Date(getFullYear(), getMonth(), el.caldate);
+                        }
+                        el.ttip = date.print(el.calendar.ttDateFormat) + el.ttip.substr(1);
+                }
+                el.calendar.tooltips.firstChild.data = el.ttip;
+        }
+        if (el.navtype != 300) {
+                Calendar.addClass(el, "hilite");
+                if (el.caldate) {
+                        Calendar.addClass(el.parentNode, "rowhilite");
+                }
+        }
+        return Calendar.stopEvent(ev);
 };
 
 Calendar.dayMouseOut = function(ev) {
-	with (Calendar) {
-		var el = getElement(ev);
-		if (isRelated(el, ev) || _C || el.disabled) {
-			return false;
-		}
-		removeClass(el, "hilite");
-		if (el.caldate) {
-			removeClass(el.parentNode, "rowhilite");
-		}
-		el.calendar.tooltips.firstChild.data = _TT["SEL_DATE"];
-		return stopEvent(ev);
-	}
+        with (Calendar) {
+                var el = getElement(ev);
+                if (isRelated(el, ev) || _C || el.disabled) {
+                        return false;
+                }
+                removeClass(el, "hilite");
+                if (el.caldate) {
+                        removeClass(el.parentNode, "rowhilite");
+                }
+                el.calendar.tooltips.firstChild.data = _TT["SEL_DATE"];
+                return stopEvent(ev);
+        }
 };
 
 /**
  *  A generic "click" handler :) handles all types of buttons defined in this
  *  calendar.
  */
 Calendar.cellClick = function(el) {
-	var cal = el.calendar;
-	var closing = false;
-	var newdate = false;
-	var date = null;
-	if (typeof el.navtype == "undefined") {
-		Calendar.removeClass(cal.currentDateEl, "selected");
-		Calendar.addClass(el, "selected");
-		closing = (cal.currentDateEl == el);
-		if (!closing) {
-			cal.currentDateEl = el;
-		}
-		cal.date.setDate(el.caldate);
-		date = cal.date;
-		newdate = true;
-		// a date was clicked
-		cal.dateClicked = true;
-	} else {
-		if (el.navtype == 200) {
-			Calendar.removeClass(el, "hilite");
-			cal.callCloseHandler();
-			return;
-		}
-		date = (el.navtype == 0) ? new Date() : new Date(cal.date);
-		// unless "today" was clicked, we assume no date was clicked so
-		// the selected handler will know not to close the calenar when
-		// in single-click mode.
-		cal.dateClicked = (el.navtype == 0);
-		var year = date.getFullYear();
-		var mon = date.getMonth();
-		function setMonth(m) {
-			var day = date.getDate();
-			var max = date.getMonthDays(m);
-			if (day > max) {
-				date.setDate(max);
-			}
-			date.setMonth(m);
-		};
-		switch (el.navtype) {
-		    case -2:
-			if (year > cal.minYear) {
-				date.setFullYear(year - 1);
-			}
-			break;
-		    case -1:
-			if (mon > 0) {
-				setMonth(mon - 1);
-			} else if (year-- > cal.minYear) {
-				date.setFullYear(year);
-				setMonth(11);
-			}
-			break;
-		    case 1:
-			if (mon < 11) {
-				setMonth(mon + 1);
-			} else if (year < cal.maxYear) {
-				date.setFullYear(year + 1);
-				setMonth(0);
-			}
-			break;
-		    case 2:
-			if (year < cal.maxYear) {
-				date.setFullYear(year + 1);
-			}
-			break;
-		    case 100:
-			cal.setMondayFirst(!cal.mondayFirst);
-			return;
-		    case 0:
-			// TODAY will bring us here
-			if ((typeof cal.checkDisabled == "function") && cal.checkDisabled(date)) {
-				// remember, "date" was previously set to new
-				// Date() if TODAY was clicked; thus, it
-				// contains today date.
-				return false;
-			}
-			break;
-		}
-		if (!date.equalsTo(cal.date)) {
-			cal.setDate(date);
-			newdate = true;
-		}
-	}
-	if (newdate) {
-		cal.callHandler();
-	}
-	if (closing) {
-		Calendar.removeClass(el, "hilite");
-		cal.callCloseHandler();
-	}
+        var cal = el.calendar;
+        var closing = false;
+        var newdate = false;
+        var date = null;
+        if (typeof el.navtype == "undefined") {
+                Calendar.removeClass(cal.currentDateEl, "selected");
+                Calendar.addClass(el, "selected");
+                closing = (cal.currentDateEl == el);
+                if (!closing) {
+                        cal.currentDateEl = el;
+                }
+                cal.date.setDate(el.caldate);
+                date = cal.date;
+                newdate = true;
+                // a date was clicked
+                cal.dateClicked = true;
+        } else {
+                if (el.navtype == 200) {
+                        Calendar.removeClass(el, "hilite");
+                        cal.callCloseHandler();
+                        return;
+                }
+                date = (el.navtype == 0) ? new Date() : new Date(cal.date);
+                // unless "today" was clicked, we assume no date was clicked so
+                // the selected handler will know not to close the calenar when
+                // in single-click mode.
+                cal.dateClicked = (el.navtype == 0);
+                var year = date.getFullYear();
+                var mon = date.getMonth();
+                function setMonth(m) {
+                        var day = date.getDate();
+                        var max = date.getMonthDays(m);
+                        if (day > max) {
+                                date.setDate(max);
+                        }
+                        date.setMonth(m);
+                };
+                switch (el.navtype) {
+                    case -2:
+                        if (year > cal.minYear) {
+                                date.setFullYear(year - 1);
+                        }
+                        break;
+                    case -1:
+                        if (mon > 0) {
+                                setMonth(mon - 1);
+                        } else if (year-- > cal.minYear) {
+                                date.setFullYear(year);
+                                setMonth(11);
+                        }
+                        break;
+                    case 1:
+                        if (mon < 11) {
+                                setMonth(mon + 1);
+                        } else if (year < cal.maxYear) {
+                                date.setFullYear(year + 1);
+                                setMonth(0);
+                        }
+                        break;
+                    case 2:
+                        if (year < cal.maxYear) {
+                                date.setFullYear(year + 1);
+                        }
+                        break;
+                    case 100:
+                        cal.setMondayFirst(!cal.mondayFirst);
+                        return;
+                    case 0:
+                        // TODAY will bring us here
+                        if ((typeof cal.checkDisabled == "function") && cal.checkDisabled(date)) {
+                                // remember, "date" was previously set to new
+                                // Date() if TODAY was clicked; thus, it
+                                // contains today date.
+                                return false;
+                        }
+                        break;
+                }
+                if (!date.equalsTo(cal.date)) {
+                        cal.setDate(date);
+                        newdate = true;
+                }
+        }
+        if (newdate) {
+                cal.callHandler();
+        }
+        if (closing) {
+                Calendar.removeClass(el, "hilite");
+                cal.callCloseHandler();
+        }
 };
 
 // END: CALENDAR STATIC FUNCTIONS
@@ -820,247 +819,247 @@
  *  hidden).  Some properties need to be set before calling this function.
  */
 Calendar.prototype.create = function (_par) {
-	var parent = null;
-	if (! _par) {
-		// default parent is the document body, in which case we create
-		// a popup calendar.
-		parent = document.getElementsByTagName("body")[0];
-		this.isPopup = true;
-	} else {
-		parent = _par;
-		this.isPopup = false;
-	}
-	this.date = this.dateStr ? this.parseDate(this.dateStr) : new Date();
+        var parent = null;
+        if (! _par) {
+                // default parent is the document body, in which case we create
+                // a popup calendar.
+                parent = document.getElementsByTagName("body")[0];
+                this.isPopup = true;
+        } else {
+                parent = _par;
+                this.isPopup = false;
+        }
+        this.date = this.dateStr ? this.parseDate(this.dateStr) : new Date();
 
-	var table = Calendar.createElement("table");
-	this.table = table;
-	table.cellSpacing = 0;
-	table.cellPadding = 0;
-	table.calendar = this;
-	Calendar.addEvent(table, "mousedown", Calendar.tableMouseDown);
+        var table = Calendar.createElement("table");
+        this.table = table;
+        table.cellSpacing = 0;
+        table.cellPadding = 0;
+        table.calendar = this;
+        Calendar.addEvent(table, "mousedown", Calendar.tableMouseDown);
 
-	var div = Calendar.createElement("div");
-	this.element = div;
-	div.className = "calendar";
-	if (this.isPopup) {
-		div.style.position = "absolute";
-		div.style.display = "none";
-	}
-	div.appendChild(table);
+        var div = Calendar.createElement("div");
+        this.element = div;
+        div.className = "calendar";
+        if (this.isPopup) {
+                div.style.position = "absolute";
+                div.style.display = "none";
+        }
+        div.appendChild(table);
 
-	var thead = Calendar.createElement("thead", table);
-	var cell = null;
-	var row = null;
+        var thead = Calendar.createElement("thead", table);
+        var cell = null;
+        var row = null;
 
-	var cal = this;
-	var hh = function (text, cs, navtype) {
-		cell = Calendar.createElement("td", row);
-		cell.colSpan = cs;
-		cell.className = "button";
-		Calendar._add_evs(cell);
-		cell.calendar = cal;
-		cell.navtype = navtype;
-		if (text.substr(0, 1) != "&") {
-			cell.appendChild(document.createTextNode(text));
-		}
-		else {
-			// FIXME: dirty hack for entities
-			cell.innerHTML = text;
-		}
-		return cell;
-	};
+        var cal = this;
+        var hh = function (text, cs, navtype) {
+                cell = Calendar.createElement("td", row);
+                cell.colSpan = cs;
+                cell.className = "button";
+                Calendar._add_evs(cell);
+                cell.calendar = cal;
+                cell.navtype = navtype;
+                if (text.substr(0, 1) != "&") {
+                        cell.appendChild(document.createTextNode(text));
+                }
+                else {
+                        // FIXME: dirty hack for entities
+                        cell.innerHTML = text;
+                }
+                return cell;
+        };
 
-	row = Calendar.createElement("tr", thead);
-	var title_length = 6;
-	(this.isPopup) && --title_length;
-	(this.weekNumbers) && ++title_length;
+        row = Calendar.createElement("tr", thead);
+        var title_length = 6;
+        (this.isPopup) && --title_length;
+        (this.weekNumbers) && ++title_length;
 
-	hh("-", 1, 100).ttip = Calendar._TT["TOGGLE"];
-	this.title = hh("", title_length, 300);
-	this.title.className = "title";
-	if (this.isPopup) {
-		this.title.ttip = Calendar._TT["DRAG_TO_MOVE"];
-		this.title.style.cursor = "move";
-		hh("&#x00d7;", 1, 200).ttip = Calendar._TT["CLOSE"];
-	}
+        hh("-", 1, 100).ttip = Calendar._TT["TOGGLE"];
+        this.title = hh("", title_length, 300);
+        this.title.className = "title";
+        if (this.isPopup) {
+                this.title.ttip = Calendar._TT["DRAG_TO_MOVE"];
+                this.title.style.cursor = "move";
+                hh("&#x00d7;", 1, 200).ttip = Calendar._TT["CLOSE"];
+        }
 
-	row = Calendar.createElement("tr", thead);
-	row.className = "headrow";
+        row = Calendar.createElement("tr", thead);
+        row.className = "headrow";
 
-	this._nav_py = hh("&#x00ab;", 1, -2);
-	this._nav_py.ttip = Calendar._TT["PREV_YEAR"];
+        this._nav_py = hh("&#x00ab;", 1, -2);
+        this._nav_py.ttip = Calendar._TT["PREV_YEAR"];
 
-	this._nav_pm = hh("&#x2039;", 1, -1);
-	this._nav_pm.ttip = Calendar._TT["PREV_MONTH"];
+        this._nav_pm = hh("&#x2039;", 1, -1);
+        this._nav_pm.ttip = Calendar._TT["PREV_MONTH"];
 
-	this._nav_now = hh(Calendar._TT["TODAY"], this.weekNumbers ? 4 : 3, 0);
-	this._nav_now.ttip = Calendar._TT["GO_TODAY"];
+        this._nav_now = hh(Calendar._TT["TODAY"], this.weekNumbers ? 4 : 3, 0);
+        this._nav_now.ttip = Calendar._TT["GO_TODAY"];
 
-	this._nav_nm = hh("&#x203a;", 1, 1);
-	this._nav_nm.ttip = Calendar._TT["NEXT_MONTH"];
+        this._nav_nm = hh("&#x203a;", 1, 1);
+        this._nav_nm.ttip = Calendar._TT["NEXT_MONTH"];
 
-	this._nav_ny = hh("&#x00bb;", 1, 2);
-	this._nav_ny.ttip = Calendar._TT["NEXT_YEAR"];
+        this._nav_ny = hh("&#x00bb;", 1, 2);
+        this._nav_ny.ttip = Calendar._TT["NEXT_YEAR"];
 
-	// day names
-	row = Calendar.createElement("tr", thead);
-	row.className = "daynames";
-	if (this.weekNumbers) {
-		cell = Calendar.createElement("td", row);
-		cell.className = "name wn";
-		cell.appendChild(document.createTextNode(Calendar._TT["WK"]));
-	}
-	for (var i = 7; i > 0; --i) {
-		cell = Calendar.createElement("td", row);
-		cell.appendChild(document.createTextNode(""));
-		if (!i) {
-			cell.navtype = 100;
-			cell.calendar = this;
-			Calendar._add_evs(cell);
-		}
-	}
-	this.firstdayname = (this.weekNumbers) ? row.firstChild.nextSibling : row.firstChild;
-	this._displayWeekdays();
+        // day names
+        row = Calendar.createElement("tr", thead);
+        row.className = "daynames";
+        if (this.weekNumbers) {
+                cell = Calendar.createElement("td", row);
+                cell.className = "name wn";
+                cell.appendChild(document.createTextNode(Calendar._TT["WK"]));
+        }
+        for (var i = 7; i > 0; --i) {
+                cell = Calendar.createElement("td", row);
+                cell.appendChild(document.createTextNode(""));
+                if (!i) {
+                        cell.navtype = 100;
+                        cell.calendar = this;
+                        Calendar._add_evs(cell);
+                }
+        }
+        this.firstdayname = (this.weekNumbers) ? row.firstChild.nextSibling : row.firstChild;
+        this._displayWeekdays();
 
-	var tbody = Calendar.createElement("tbody", table);
-	this.tbody = tbody;
+        var tbody = Calendar.createElement("tbody", table);
+        this.tbody = tbody;
 
-	for (i = 6; i > 0; --i) {
-		row = Calendar.createElement("tr", tbody);
-		if (this.weekNumbers) {
-			cell = Calendar.createElement("td", row);
-			cell.appendChild(document.createTextNode(""));
-		}
-		for (var j = 7; j > 0; --j) {
-			cell = Calendar.createElement("td", row);
-			cell.appendChild(document.createTextNode(""));
-			cell.calendar = this;
-			Calendar._add_evs(cell);
-		}
-	}
+        for (i = 6; i > 0; --i) {
+                row = Calendar.createElement("tr", tbody);
+                if (this.weekNumbers) {
+                        cell = Calendar.createElement("td", row);
+                        cell.appendChild(document.createTextNode(""));
+                }
+                for (var j = 7; j > 0; --j) {
+                        cell = Calendar.createElement("td", row);
+                        cell.appendChild(document.createTextNode(""));
+                        cell.calendar = this;
+                        Calendar._add_evs(cell);
+                }
+        }
 
-	var tfoot = Calendar.createElement("tfoot", table);
+        var tfoot = Calendar.createElement("tfoot", table);
 
-	row = Calendar.createElement("tr", tfoot);
-	row.className = "footrow";
+        row = Calendar.createElement("tr", tfoot);
+        row.className = "footrow";
 
-	cell = hh(Calendar._TT["SEL_DATE"], this.weekNumbers ? 8 : 7, 300);
-	cell.className = "ttip";
-	if (this.isPopup) {
-		cell.ttip = Calendar._TT["DRAG_TO_MOVE"];
-		cell.style.cursor = "move";
-	}
-	this.tooltips = cell;
+        cell = hh(Calendar._TT["SEL_DATE"], this.weekNumbers ? 8 : 7, 300);
+        cell.className = "ttip";
+        if (this.isPopup) {
+                cell.ttip = Calendar._TT["DRAG_TO_MOVE"];
+                cell.style.cursor = "move";
+        }
+        this.tooltips = cell;
 
-	div = Calendar.createElement("div", this.element);
-	this.monthsCombo = div;
-	div.className = "combo";
-	for (i = 0; i < Calendar._MN.length; ++i) {
-		var mn = Calendar.createElement("div");
-		mn.className = "label";
-		mn.month = i;
-		mn.appendChild(document.createTextNode(Calendar._MN3[i]));
-		div.appendChild(mn);
-	}
+        div = Calendar.createElement("div", this.element);
+        this.monthsCombo = div;
+        div.className = "combo";
+        for (i = 0; i < Calendar._MN.length; ++i) {
+                var mn = Calendar.createElement("div");
+                mn.className = "label";
+                mn.month = i;
+                mn.appendChild(document.createTextNode(Calendar._MN3[i]));
+                div.appendChild(mn);
+        }
 
-	div = Calendar.createElement("div", this.element);
-	this.yearsCombo = div;
-	div.className = "combo";
-	for (i = 12; i > 0; --i) {
-		var yr = Calendar.createElement("div");
-		yr.className = "label";
-		yr.appendChild(document.createTextNode(""));
-		div.appendChild(yr);
-	}
+        div = Calendar.createElement("div", this.element);
+        this.yearsCombo = div;
+        div.className = "combo";
+        for (i = 12; i > 0; --i) {
+                var yr = Calendar.createElement("div");
+                yr.className = "label";
+                yr.appendChild(document.createTextNode(""));
+                div.appendChild(yr);
+        }
 
-	this._init(this.mondayFirst, this.date);
-	parent.appendChild(this.element);
+        this._init(this.mondayFirst, this.date);
+        parent.appendChild(this.element);
 };
 
 /** keyboard navigation, only for popup calendars */
 Calendar._keyEvent = function(ev) {
-	if (!window.calendar) {
-		return false;
-	}
-	(Calendar.is_ie) && (ev = window.event);
-	var cal = window.calendar;
-	var act = (Calendar.is_ie || ev.type == "keypress");
-	if (ev.ctrlKey) {
-		switch (ev.keyCode) {
-		    case 37: // KEY left
-			act && Calendar.cellClick(cal._nav_pm);
-			break;
-		    case 38: // KEY up
-			act && Calendar.cellClick(cal._nav_py);
-			break;
-		    case 39: // KEY right
-			act && Calendar.cellClick(cal._nav_nm);
-			break;
-		    case 40: // KEY down
-			act && Calendar.cellClick(cal._nav_ny);
-			break;
-		    default:
-			return false;
-		}
-	} else switch (ev.keyCode) {
-	    case 32: // KEY space (now)
-		Calendar.cellClick(cal._nav_now);
-		break;
-	    case 27: // KEY esc
-		act && cal.hide();
-		break;
-	    case 37: // KEY left
-	    case 38: // KEY up
-	    case 39: // KEY right
-	    case 40: // KEY down
-		if (act) {
-			var date = cal.date.getDate() - 1;
-			var el = cal.currentDateEl;
-			var ne = null;
-			var prev = (ev.keyCode == 37) || (ev.keyCode == 38);
-			switch (ev.keyCode) {
-			    case 37: // KEY left
-				(--date >= 0) && (ne = cal.ar_days[date]);
-				break;
-			    case 38: // KEY up
-				date -= 7;
-				(date >= 0) && (ne = cal.ar_days[date]);
-				break;
-			    case 39: // KEY right
-				(++date < cal.ar_days.length) && (ne = cal.ar_days[date]);
-				break;
-			    case 40: // KEY down
-				date += 7;
-				(date < cal.ar_days.length) && (ne = cal.ar_days[date]);
-				break;
-			}
-			if (!ne) {
-				if (prev) {
-					Calendar.cellClick(cal._nav_pm);
-				} else {
-					Calendar.cellClick(cal._nav_nm);
-				}
-				date = (prev) ? cal.date.getMonthDays() : 1;
-				el = cal.currentDateEl;
-				ne = cal.ar_days[date - 1];
-			}
-			Calendar.removeClass(el, "selected");
-			Calendar.addClass(ne, "selected");
-			cal.date.setDate(ne.caldate);
-			cal.callHandler();
-			cal.currentDateEl = ne;
-		}
-		break;
-	    case 13: // KEY enter
-		if (act) {
-			cal.callHandler();
-			cal.hide();
-		}
-		break;
-	    default:
-		return false;
-	}
-	return Calendar.stopEvent(ev);
+        if (!window.calendar) {
+                return false;
+        }
+        (Calendar.is_ie) && (ev = window.event);
+        var cal = window.calendar;
+        var act = (Calendar.is_ie || ev.type == "keypress");
+        if (ev.ctrlKey) {
+                switch (ev.keyCode) {
+                    case 37: // KEY left
+                        act && Calendar.cellClick(cal._nav_pm);
+                        break;
+                    case 38: // KEY up
+                        act && Calendar.cellClick(cal._nav_py);
+                        break;
+                    case 39: // KEY right
+                        act && Calendar.cellClick(cal._nav_nm);
+                        break;
+                    case 40: // KEY down
+                        act && Calendar.cellClick(cal._nav_ny);
+                        break;
+                    default:
+                        return false;
+                }
+        } else switch (ev.keyCode) {
+            case 32: // KEY space (now)
+                Calendar.cellClick(cal._nav_now);
+                break;
+            case 27: // KEY esc
+                act && cal.hide();
+                break;
+            case 37: // KEY left
+            case 38: // KEY up
+            case 39: // KEY right
+            case 40: // KEY down
+                if (act) {
+                        var date = cal.date.getDate() - 1;
+                        var el = cal.currentDateEl;
+                        var ne = null;
+                        var prev = (ev.keyCode == 37) || (ev.keyCode == 38);
+                        switch (ev.keyCode) {
+                            case 37: // KEY left
+                                (--date >= 0) && (ne = cal.ar_days[date]);
+                                break;
+                            case 38: // KEY up
+                                date -= 7;
+                                (date >= 0) && (ne = cal.ar_days[date]);
+                                break;
+                            case 39: // KEY right
+                                (++date < cal.ar_days.length) && (ne = cal.ar_days[date]);
+                                break;
+                            case 40: // KEY down
+                                date += 7;
+                                (date < cal.ar_days.length) && (ne = cal.ar_days[date]);
+                                break;
+                        }
+                        if (!ne) {
+                                if (prev) {
+                                        Calendar.cellClick(cal._nav_pm);
+                                } else {
+                                        Calendar.cellClick(cal._nav_nm);
+                                }
+                                date = (prev) ? cal.date.getMonthDays() : 1;
+                                el = cal.currentDateEl;
+                                ne = cal.ar_days[date - 1];
+                        }
+                        Calendar.removeClass(el, "selected");
+                        Calendar.addClass(ne, "selected");
+                        cal.date.setDate(ne.caldate);
+                        cal.callHandler();
+                        cal.currentDateEl = ne;
+                }
+                break;
+            case 13: // KEY enter
+                if (act) {
+                        cal.callHandler();
+                        cal.hide();
+                }
+                break;
+            default:
+                return false;
+        }
+        return Calendar.stopEvent(ev);
 };
 
 /**
@@ -1069,104 +1068,104 @@
  *  Sunday.
  */
 Calendar.prototype._init = function (mondayFirst, date) {
-	var today = new Date();
-	var year = date.getFullYear();
-	if (year < this.minYear) {
-		year = this.minYear;
-		date.setFullYear(year);
-	} else if (year > this.maxYear) {
-		year = this.maxYear;
-		date.setFullYear(year);
-	}
-	this.mondayFirst = mondayFirst;
-	this.date = new Date(date);
-	var month = date.getMonth();
-	var mday = date.getDate();
-	var no_days = date.getMonthDays();
-	date.setDate(1);
-	var wday = date.getDay();
-	var MON = mondayFirst ? 1 : 0;
-	var SAT = mondayFirst ? 5 : 6;
-	var SUN = mondayFirst ? 6 : 0;
-	if (mondayFirst) {
-		wday = (wday > 0) ? (wday - 1) : 6;
-	}
-	var iday = 1;
-	var row = this.tbody.firstChild;
-	var MN = Calendar._MN3[month];
-	var hasToday = ((today.getFullYear() == year) && (today.getMonth() == month));
-	var todayDate = today.getDate();
-	var week_number = date.getWeekNumber();
-	var ar_days = new Array();
-	for (var i = 0; i < 6; ++i) {
-		if (iday > no_days) {
-			row.className = "emptyrow";
-			row = row.nextSibling;
-			continue;
-		}
-		var cell = row.firstChild;
-		if (this.weekNumbers) {
-			cell.className = "day wn";
-			cell.firstChild.data = week_number;
-			cell = cell.nextSibling;
-		}
-		++week_number;
-		row.className = "daysrow";
-		for (var j = 0; j < 7; ++j) {
-			cell.className = "day";
-			if ((!i && j < wday) || iday > no_days) {
-				// cell.className = "emptycell";
-				cell.innerHTML = "&nbsp;";
-				cell.disabled = true;
-				cell = cell.nextSibling;
-				continue;
-			}
-			cell.disabled = false;
-			cell.firstChild.data = iday;
-			if (typeof this.checkDisabled == "function") {
-				date.setDate(iday);
-				if (this.checkDisabled(date)) {
-					cell.className += " disabled";
-					cell.disabled = true;
-				}
-			}
-			if (!cell.disabled) {
-				ar_days[ar_days.length] = cell;
-				cell.caldate = iday;
-				cell.ttip = "_";
-				if (iday == mday) {
-					cell.className += " selected";
-					this.currentDateEl = cell;
-				}
-				if (hasToday && (iday == todayDate)) {
-					cell.className += " today";
-					cell.ttip += Calendar._TT["PART_TODAY"];
-				}
-				if (wday == SAT || wday == SUN) {
-					cell.className += " weekend";
-				}
-			}
-			++iday;
-			((++wday) ^ 7) || (wday = 0);
-			cell = cell.nextSibling;
-		}
-		row = row.nextSibling;
-	}
-	this.ar_days = ar_days;
-	this.title.firstChild.data = Calendar._MN[month] + ", " + year;
+        var today = new Date();
+        var year = date.getFullYear();
+        if (year < this.minYear) {
+                year = this.minYear;
+                date.setFullYear(year);
+        } else if (year > this.maxYear) {
+                year = this.maxYear;
+                date.setFullYear(year);
+        }
+        this.mondayFirst = mondayFirst;
+        this.date = new Date(date);
+        var month = date.getMonth();
+        var mday = date.getDate();
+        var no_days = date.getMonthDays();
+        date.setDate(1);
+        var wday = date.getDay();
+        var MON = mondayFirst ? 1 : 0;
+        var SAT = mondayFirst ? 5 : 6;
+        var SUN = mondayFirst ? 6 : 0;
+        if (mondayFirst) {
+                wday = (wday > 0) ? (wday - 1) : 6;
+        }
+        var iday = 1;
+        var row = this.tbody.firstChild;
+        var MN = Calendar._MN3[month];
+        var hasToday = ((today.getFullYear() == year) && (today.getMonth() == month));
+        var todayDate = today.getDate();
+        var week_number = date.getWeekNumber();
+        var ar_days = new Array();
+        for (var i = 0; i < 6; ++i) {
+                if (iday > no_days) {
+                        row.className = "emptyrow";
+                        row = row.nextSibling;
+                        continue;
+                }
+                var cell = row.firstChild;
+                if (this.weekNumbers) {
+                        cell.className = "day wn";
+                        cell.firstChild.data = week_number;
+                        cell = cell.nextSibling;
+                }
+                ++week_number;
+                row.className = "daysrow";
+                for (var j = 0; j < 7; ++j) {
+                        cell.className = "day";
+                        if ((!i && j < wday) || iday > no_days) {
+                                // cell.className = "emptycell";
+                                cell.innerHTML = "&nbsp;";
+                                cell.disabled = true;
+                                cell = cell.nextSibling;
+                                continue;
+                        }
+                        cell.disabled = false;
+                        cell.firstChild.data = iday;
+                        if (typeof this.checkDisabled == "function") {
+                                date.setDate(iday);
+                                if (this.checkDisabled(date)) {
+                                        cell.className += " disabled";
+                                        cell.disabled = true;
+                                }
+                        }
+                        if (!cell.disabled) {
+                                ar_days[ar_days.length] = cell;
+                                cell.caldate = iday;
+                                cell.ttip = "_";
+                                if (iday == mday) {
+                                        cell.className += " selected";
+                                        this.currentDateEl = cell;
+                                }
+                                if (hasToday && (iday == todayDate)) {
+                                        cell.className += " today";
+                                        cell.ttip += Calendar._TT["PART_TODAY"];
+                                }
+                                if (wday == SAT || wday == SUN) {
+                                        cell.className += " weekend";
+                                }
+                        }
+                        ++iday;
+                        ((++wday) ^ 7) || (wday = 0);
+                        cell = cell.nextSibling;
+                }
+                row = row.nextSibling;
+        }
+        this.ar_days = ar_days;
+        this.title.firstChild.data = Calendar._MN[month] + ", " + year;
         this._hideCombos();
-	// PROFILE
-	// this.tooltips.firstChild.data = "Generated in " + ((new Date()) - today) + " ms";
+        // PROFILE
+        // this.tooltips.firstChild.data = "Generated in " + ((new Date()) - today) + " ms";
 };
 
 /**
  *  Calls _init function above for going to a certain date (but only if the
  *  date is different than the currently selected one).
  */
 Calendar.prototype.setDate = function (date) {
-	if (!date.equalsTo(this.date)) {
-		this._init(this.mondayFirst, date);
-	}
+        if (!date.equalsTo(this.date)) {
+                this._init(this.mondayFirst, date);
+        }
 };
 
 /**
@@ -1176,13 +1175,13 @@
  *  should * change.
  */
 Calendar.prototype.refresh = function () {
-	this._init(this.mondayFirst, this.date);
+        this._init(this.mondayFirst, this.date);
 };
 
 /** Modifies the "mondayFirst" parameter (EU/US style). */
 Calendar.prototype.setMondayFirst = function (mondayFirst) {
-	this._init(mondayFirst, this.date);
-	this._displayWeekdays();
+        this._init(mondayFirst, this.date);
+        this._displayWeekdays();
 };
 
 /**
@@ -1192,100 +1191,100 @@
  *  the passed date will be marked as disabled.
  */
 Calendar.prototype.setDisabledHandler = function (unaryFunction) {
-	this.checkDisabled = unaryFunction;
+        this.checkDisabled = unaryFunction;
 };
 
 /** Customization of allowed year range for the calendar. */
 Calendar.prototype.setRange = function (a, z) {
-	this.minYear = a;
-	this.maxYear = z;
+        this.minYear = a;
+        this.maxYear = z;
 };
 
 /** Calls the first user handler (selectedHandler). */
 Calendar.prototype.callHandler = function () {
-	if (this.onSelected) {
-		this.onSelected(this, this.date.print(this.dateFormat));
-	}
+        if (this.onSelected) {
+                this.onSelected(this, this.date.print(this.dateFormat));
+        }
 };
 
 /** Calls the second user handler (closeHandler). */
 Calendar.prototype.callCloseHandler = function () {
-	if (this.onClose) {
-		this.onClose(this);
-	}
-	this.hideShowCovered();
+        if (this.onClose) {
+                this.onClose(this);
+        }
+        this.hideShowCovered();
 };
 
 /** Removes the calendar object from the DOM tree and destroys it. */
 Calendar.prototype.destroy = function () {
-	var el = this.element.parentNode;
-	el.removeChild(this.element);
-	Calendar._C = null;
+        var el = this.element.parentNode;
+        el.removeChild(this.element);
+        Calendar._C = null;
 };
 
 /**
  *  Moves the calendar element to a different section in the DOM tree (changes
  *  its parent).
  */
 Calendar.prototype.reparent = function (new_parent) {
-	var el = this.element;
-	el.parentNode.removeChild(el);
-	new_parent.appendChild(el);
+        var el = this.element;
+        el.parentNode.removeChild(el);
+        new_parent.appendChild(el);
 };
 
 // This gets called when the user presses a mouse button anywhere in the
 // document, if the calendar is shown.  If the click was outside the open
 // calendar this function closes it.
 Calendar._checkCalendar = function(ev) {
-	if (!window.calendar) {
-		return false;
-	}
-	var el = Calendar.is_ie ? Calendar.getElement(ev) : Calendar.getTargetElement(ev);
-	for (; el != null && el != calendar.element; el = el.parentNode);
-	if (el == null) {
-		// calls closeHandler which should hide the calendar.
-		window.calendar.callCloseHandler();
-		return Calendar.stopEvent(ev);
-	}
+        if (!window.calendar) {
+                return false;
+        }
+        var el = Calendar.is_ie ? Calendar.getElement(ev) : Calendar.getTargetElement(ev);
+        for (; el != null && el != calendar.element; el = el.parentNode);
+        if (el == null) {
+                // calls closeHandler which should hide the calendar.
+                window.calendar.callCloseHandler();
+                return Calendar.stopEvent(ev);
+        }
 };
 
 /** Shows the calendar. */
 Calendar.prototype.show = function () {
-	var rows = this.table.getElementsByTagName("tr");
-	for (var i = rows.length; i > 0;) {
-		var row = rows[--i];
-		Calendar.removeClass(row, "rowhilite");
-		var cells = row.getElementsByTagName("td");
-		for (var j = cells.length; j > 0;) {
-			var cell = cells[--j];
-			Calendar.removeClass(cell, "hilite");
-			Calendar.removeClass(cell, "active");
-		}
-	}
-	this.element.style.display = "block";
-	this.hidden = false;
-	if (this.isPopup) {
-		window.calendar = this;
-		Calendar.addEvent(document, "keydown", Calendar._keyEvent);
-		Calendar.addEvent(document, "keypress", Calendar._keyEvent);
-		Calendar.addEvent(document, "mousedown", Calendar._checkCalendar);
-	}
-	this.hideShowCovered();
+        var rows = this.table.getElementsByTagName("tr");
+        for (var i = rows.length; i > 0;) {
+                var row = rows[--i];
+                Calendar.removeClass(row, "rowhilite");
+                var cells = row.getElementsByTagName("td");
+                for (var j = cells.length; j > 0;) {
+                        var cell = cells[--j];
+                        Calendar.removeClass(cell, "hilite");
+                        Calendar.removeClass(cell, "active");
+                }
+        }
+        this.element.style.display = "block";
+        this.hidden = false;
+        if (this.isPopup) {
+                window.calendar = this;
+                Calendar.addEvent(document, "keydown", Calendar._keyEvent);
+                Calendar.addEvent(document, "keypress", Calendar._keyEvent);
+                Calendar.addEvent(document, "mousedown", Calendar._checkCalendar);
+        }
+        this.hideShowCovered();
 };
 
 /**
  *  Hides the calendar.  Also removes any "hilite" from the class of any TD
  *  element.
  */
 Calendar.prototype.hide = function () {
-	if (this.isPopup) {
-		Calendar.removeEvent(document, "keydown", Calendar._keyEvent);
-		Calendar.removeEvent(document, "keypress", Calendar._keyEvent);
-		Calendar.removeEvent(document, "mousedown", Calendar._checkCalendar);
-	}
-	this.element.style.display = "none";
-	this.hidden = true;
-	this.hideShowCovered();
+        if (this.isPopup) {
+                Calendar.removeEvent(document, "keydown", Calendar._keyEvent);
+                Calendar.removeEvent(document, "keypress", Calendar._keyEvent);
+                Calendar.removeEvent(document, "mousedown", Calendar._checkCalendar);
+        }
+        this.element.style.display = "none";
+        this.hidden = true;
+        this.hideShowCovered();
 };
 
 /**
@@ -1294,235 +1293,235 @@
  *  to the parent's containing rectangle).
  */
 Calendar.prototype.showAt = function (x, y) {
-	var s = this.element.style;
-	s.left = x + "px";
-	s.top = y + "px";
-	this.show();
+        var s = this.element.style;
+        s.left = x + "px";
+        s.top = y + "px";
+        this.show();
 };
 
 /** Shows the calendar near a given element. */
 Calendar.prototype.showAtElement = function (el, opts) {
-	var p = Calendar.getAbsolutePos(el);
-	if (!opts || typeof opts != "string") {
-		this.showAt(p.x, p.y + el.offsetHeight);
-		return true;
-	}
-	this.show();
-	var w = this.element.offsetWidth;
-	var h = this.element.offsetHeight;
-	this.hide();
-	var valign = opts.substr(0, 1);
-	var halign = "l";
-	if (opts.length > 1) {
-		halign = opts.substr(1, 1);
-	}
-	// vertical alignment
+        var p = Calendar.getAbsolutePos(el);
+        if (!opts || typeof opts != "string") {
+                this.showAt(p.x, p.y + el.offsetHeight);
+                return true;
+        }
+        this.show();
+        var w = this.element.offsetWidth;
+        var h = this.element.offsetHeight;
+        this.hide();
+        var valign = opts.substr(0, 1);
+        var halign = "l";
+        if (opts.length > 1) {
+                halign = opts.substr(1, 1);
+        }
+        // vertical alignment
         switch (valign) {
-	    case "T": p.y -= h; break;
-	    case "B": p.y += el.offsetHeight; break;
-	    case "C": p.y += (el.offsetHeight - h) / 2; break;
-	    case "t": p.y += el.offsetHeight - h; break;
-	    case "b": break; // already there
+            case "T": p.y -= h; break;
+            case "B": p.y += el.offsetHeight; break;
+            case "C": p.y += (el.offsetHeight - h) / 2; break;
+            case "t": p.y += el.offsetHeight - h; break;
+            case "b": break; // already there
         }
-	// horizontal alignment
-	switch (halign) {
-	    case "L": p.x -= w; break;
-	    case "R": p.x += el.offsetWidth; break;
-	    case "C": p.x += (el.offsetWidth - w) / 2; break;
-	    case "r": p.x += el.offsetWidth - w; break;
-	    case "l": break; // already there
-	}
-	this.showAt(p.x, p.y);
+        // horizontal alignment
+        switch (halign) {
+            case "L": p.x -= w; break;
+            case "R": p.x += el.offsetWidth; break;
+            case "C": p.x += (el.offsetWidth - w) / 2; break;
+            case "r": p.x += el.offsetWidth - w; break;
+            case "l": break; // already there
+        }
+        this.showAt(p.x, p.y);
 };
 
 /** Customizes the date format. */
 Calendar.prototype.setDateFormat = function (str) {
-	this.dateFormat = str;
+        this.dateFormat = str;
 };
 
 /** Customizes the tooltip date format. */
 Calendar.prototype.setTtDateFormat = function (str) {
-	this.ttDateFormat = str;
+        this.ttDateFormat = str;
 };
 
 /**
  *  Tries to identify the date represented in a string.  If successful it also
  *  calls this.setDate which moves the calendar to the given date.
  */
 Calendar.prototype.parseDate = function (str, fmt) {
-	var y = 0;
-	var m = -1;
-	var d = 0;
-	var a = str.split(/\W+/);
-	if (!fmt) {
-	    fmt = this.dateFormat;
-	} else {
-	    this.dateFormat = fmt;
+        var y = 0;
+        var m = -1;
+        var d = 0;
+        var a = str.split(/\W+/);
+        if (!fmt) {
+            fmt = this.dateFormat;
+        } else {
+            this.dateFormat = fmt;
         }
-	var b = fmt.split(/\W+/);
-	var i = 0, j = 0;
-	for (i = 0; i < a.length; ++i) {
-		if (b[i] == "D" || b[i] == "DD") {
-			continue;
-		}
-		if (b[i] == "d" || b[i] == "dd") {
-			d = parseInt(a[i], 10);
-		}
-		if (b[i] == "m" || b[i] == "mm") {
-			m = parseInt(a[i], 10) - 1;
-		}
-		if ((b[i] == "y") || (b[i] == "yy") || (b[i] == "yyyy")) {
-			y = parseInt(a[i], 10);
-			(y < 100) && (y += (y > 29) ? 1900 : 2000);
-		}
-		if (b[i] == "M" || b[i] == "MM") {
-			for (j = 0; j < 12; ++j) {
-				if (Calendar._MN[j].substr(0, a[i].length).toLowerCase() == a[i].toLowerCase()) { m = j; break; }
-			}
-		}
-	}
-	if (y != 0 && m != -1 && d != 0) {
-		return (new Date(y, m, d));
-	}
-	y = 0; m = -1; d = 0;
-	for (i = 0; i < a.length; ++i) {
-		if (a[i].search(/[a-zA-Z]+/) != -1) {
-			var t = -1;
-			for (j = 0; j < 12; ++j) {
-				if (Calendar._MN[j].substr(0, a[i].length).toLowerCase() == a[i].toLowerCase()) { t = j; break; }
-			}
-			if (t != -1) {
-				if (m != -1) {
-					d = m+1;
-				}
-				m = t;
-			}
-		} else if (parseInt(a[i], 10) <= 12 && m == -1) {
-			m = a[i]-1;
-		} else if (parseInt(a[i], 10) > 31 && y == 0) {
-			y = parseInt(a[i], 10);
-			(y < 100) && (y += (y > 29) ? 1900 : 2000);
-		} else if (d == 0) {
-			d = a[i];
-		}
-	}
-	if (y == 0) {
-		var today = new Date();
-		y = today.getFullYear();
-	}
-	if (m != -1 && d != 0) {
-		return (new Date(y, m, d));
-	}
+        var b = fmt.split(/\W+/);
+        var i = 0, j = 0;
+        for (i = 0; i < a.length; ++i) {
+                if (b[i] == "D" || b[i] == "DD") {
+                        continue;
+                }
+                if (b[i] == "d" || b[i] == "dd") {
+                        d = parseInt(a[i], 10);
+                }
+                if (b[i] == "m" || b[i] == "mm") {
+                        m = parseInt(a[i], 10) - 1;
+                }
+                if ((b[i] == "y") || (b[i] == "yy") || (b[i] == "yyyy")) {
+                        y = parseInt(a[i], 10);
+                        (y < 100) && (y += (y > 29) ? 1900 : 2000);
+                }
+                if (b[i] == "M" || b[i] == "MM") {
+                        for (j = 0; j < 12; ++j) {
+                                if (Calendar._MN[j].substr(0, a[i].length).toLowerCase() == a[i].toLowerCase()) { m = j; break; }
+                        }
+                }
+        }
+        if (y != 0 && m != -1 && d != 0) {
+                return (new Date(y, m, d));
+        }
+        y = 0; m = -1; d = 0;
+        for (i = 0; i < a.length; ++i) {
+                if (a[i].search(/[a-zA-Z]+/) != -1) {
+                        var t = -1;
+                        for (j = 0; j < 12; ++j) {
+                                if (Calendar._MN[j].substr(0, a[i].length).toLowerCase() == a[i].toLowerCase()) { t = j; break; }
+                        }
+                        if (t != -1) {
+                                if (m != -1) {
+                                        d = m+1;
+                                }
+                                m = t;
+                        }
+                } else if (parseInt(a[i], 10) <= 12 && m == -1) {
+                        m = a[i]-1;
+                } else if (parseInt(a[i], 10) > 31 && y == 0) {
+                        y = parseInt(a[i], 10);
+                        (y < 100) && (y += (y > 29) ? 1900 : 2000);
+                } else if (d == 0) {
+                        d = a[i];
+                }
+        }
+        if (y == 0) {
+                var today = new Date();
+                y = today.getFullYear();
+        }
+        if (m != -1 && d != 0) {
+                return (new Date(y, m, d));
+        }
 };
 
 Calendar.prototype.parseAndSetDate = function (str, fmt) {
     this.setDate(this.parseDate(str,fmt));
 }
 
 Calendar.prototype.hideShowCovered = function () {
-	function getStyleProp(obj, style){
-		var value = obj.style[style];
-		if (!value) {
-			if (document.defaultView && typeof (document.defaultView.getComputedStyle) == "function") { // Gecko, W3C
-				value = document.defaultView.
-					getComputedStyle(obj, "").getPropertyValue(style);
-			} else if (obj.currentStyle) { // IE
-				value = obj.currentStyle[style];
-			} else {
-				value = obj.style[style];
-			}
-		}
-		return value;
-	};
+        function getStyleProp(obj, style){
+                var value = obj.style[style];
+                if (!value) {
+                        if (document.defaultView && typeof (document.defaultView.getComputedStyle) == "function") { // Gecko, W3C
+                                value = document.defaultView.
+                                        getComputedStyle(obj, "").getPropertyValue(style);
+                        } else if (obj.currentStyle) { // IE
+                                value = obj.currentStyle[style];
+                        } else {
+                                value = obj.style[style];
+                        }
+                }
+                return value;
+        };
 
-	var tags = new Array("applet", "iframe", "select");
-	var el = this.element;
+        var tags = new Array("applet", "iframe", "select");
+        var el = this.element;
 
-	var p = Calendar.getAbsolutePos(el);
-	var EX1 = p.x;
-	var EX2 = el.offsetWidth + EX1;
-	var EY1 = p.y;
-	var EY2 = el.offsetHeight + EY1;
+        var p = Calendar.getAbsolutePos(el);
+        var EX1 = p.x;
+        var EX2 = el.offsetWidth + EX1;
+        var EY1 = p.y;
+        var EY2 = el.offsetHeight + EY1;
 
-	for (var k = tags.length; k > 0; ) {
-		var ar = document.getElementsByTagName(tags[--k]);
-		var cc = null;
+        for (var k = tags.length; k > 0; ) {
+                var ar = document.getElementsByTagName(tags[--k]);
+                var cc = null;
 
-		for (var i = ar.length; i > 0;) {
-			cc = ar[--i];
+                for (var i = ar.length; i > 0;) {
+                        cc = ar[--i];
 
-			p = Calendar.getAbsolutePos(cc);
-			var CX1 = p.x;
-			var CX2 = cc.offsetWidth + CX1;
-			var CY1 = p.y;
-			var CY2 = cc.offsetHeight + CY1;
+                        p = Calendar.getAbsolutePos(cc);
+                        var CX1 = p.x;
+                        var CX2 = cc.offsetWidth + CX1;
+                        var CY1 = p.y;
+                        var CY2 = cc.offsetHeight + CY1;
 
-			if (this.hidden || (CX1 > EX2) || (CX2 < EX1) || (CY1 > EY2) || (CY2 < EY1)) {
-				if (!cc.__msh_save_visibility) {
-					cc.__msh_save_visibility = getStyleProp(cc, "visibility");
-				}
-				cc.style.visibility = cc.__msh_save_visibility;
-			} else {
-				if (!cc.__msh_save_visibility) {
-					cc.__msh_save_visibility = getStyleProp(cc, "visibility");
-				}
-				cc.style.visibility = "hidden";
-			}
-		}
-	}
+                        if (this.hidden || (CX1 > EX2) || (CX2 < EX1) || (CY1 > EY2) || (CY2 < EY1)) {
+                                if (!cc.__msh_save_visibility) {
+                                        cc.__msh_save_visibility = getStyleProp(cc, "visibility");
+                                }
+                                cc.style.visibility = cc.__msh_save_visibility;
+                        } else {
+                                if (!cc.__msh_save_visibility) {
+                                        cc.__msh_save_visibility = getStyleProp(cc, "visibility");
+                                }
+                                cc.style.visibility = "hidden";
+                        }
+                }
+        }
 };
 
 /** Internal function; it displays the bar with the names of the weekday. */
 Calendar.prototype._displayWeekdays = function () {
-	var MON = this.mondayFirst ? 0 : 1;
-	var SUN = this.mondayFirst ? 6 : 0;
-	var SAT = this.mondayFirst ? 5 : 6;
-	var cell = this.firstdayname;
-	for (var i = 0; i < 7; ++i) {
-		cell.className = "day name";
-		if (!i) {
-			cell.ttip = this.mondayFirst ? Calendar._TT["SUN_FIRST"] : Calendar._TT["MON_FIRST"];
-			cell.navtype = 100;
-			cell.calendar = this;
-			Calendar._add_evs(cell);
-		}
-		if (i == SUN || i == SAT) {
-			Calendar.addClass(cell, "weekend");
-		}
-		cell.firstChild.data = Calendar._DN3[i + 1 - MON];
-		cell = cell.nextSibling;
-	}
+        var MON = this.mondayFirst ? 0 : 1;
+        var SUN = this.mondayFirst ? 6 : 0;
+        var SAT = this.mondayFirst ? 5 : 6;
+        var cell = this.firstdayname;
+        for (var i = 0; i < 7; ++i) {
+                cell.className = "day name";
+                if (!i) {
+                        cell.ttip = this.mondayFirst ? Calendar._TT["SUN_FIRST"] : Calendar._TT["MON_FIRST"];
+                        cell.navtype = 100;
+                        cell.calendar = this;
+                        Calendar._add_evs(cell);
+                }
+                if (i == SUN || i == SAT) {
+                        Calendar.addClass(cell, "weekend");
+                }
+                cell.firstChild.data = Calendar._DN3[i + 1 - MON];
+                cell = cell.nextSibling;
+        }
 };
 
 /** Internal function.  Hides all combo boxes that might be displayed. */
 Calendar.prototype._hideCombos = function () {
-	this.monthsCombo.style.display = "none";
-	this.yearsCombo.style.display = "none";
+        this.monthsCombo.style.display = "none";
+        this.yearsCombo.style.display = "none";
 };
 
 /** Internal function.  Starts dragging the element. */
 Calendar.prototype._dragStart = function (ev) {
-	if (this.dragging) {
-		return;
-	}
-	this.dragging = true;
-	var posX;
-	var posY;
-	if (Calendar.is_ie) {
-		posY = window.event.clientY + document.body.scrollTop;
-		posX = window.event.clientX + document.body.scrollLeft;
-	} else {
-		posY = ev.clientY + window.scrollY;
-		posX = ev.clientX + window.scrollX;
-	}
-	var st = this.element.style;
-	this.xOffs = posX - parseInt(st.left);
-	this.yOffs = posY - parseInt(st.top);
-	with (Calendar) {
-		addEvent(document, "mousemove", calDragIt);
-		addEvent(document, "mouseover", stopEvent);
-		addEvent(document, "mouseup", calDragEnd);
-	}
+        if (this.dragging) {
+                return;
+        }
+        this.dragging = true;
+        var posX;
+        var posY;
+        if (Calendar.is_ie) {
+                posY = window.event.clientY + document.body.scrollTop;
+                posX = window.event.clientX + document.body.scrollLeft;
+        } else {
+                posY = ev.clientY + window.scrollY;
+                posX = ev.clientX + window.scrollX;
+        }
+        var st = this.element.style;
+        this.xOffs = posX - parseInt(st.left);
+        this.yOffs = posY - parseInt(st.top);
+        with (Calendar) {
+                addEvent(document, "mousemove", calDragIt);
+                addEvent(document, "mouseover", stopEvent);
+                addEvent(document, "mouseup", calDragEnd);
+        }
 };
 
 // BEGIN: DATE OBJECT PATCHES
@@ -1539,64 +1538,64 @@
 
 /** Returns the number of days in the current month */
 Date.prototype.getMonthDays = function(month) {
-	var year = this.getFullYear();
-	if (typeof month == "undefined") {
-		month = this.getMonth();
-	}
-	if (((0 == (year%4)) && ( (0 != (year%100)) || (0 == (year%400)))) && month == 1) {
-		return 29;
-	} else {
-		return Date._MD[month];
-	}
+        var year = this.getFullYear();
+        if (typeof month == "undefined") {
+                month = this.getMonth();
+        }
+        if (((0 == (year%4)) && ( (0 != (year%100)) || (0 == (year%400)))) && month == 1) {
+                return 29;
+        } else {
+                return Date._MD[month];
+        }
 };
 
 /** Returns the number of the week.  The algorithm was "stolen" from PPK's
  * website, hope it's correct :) http://www.xs4all.nl/~ppk/js/week.html */
 Date.prototype.getWeekNumber = function() {
-	var now = new Date(this.getFullYear(), this.getMonth(), this.getDate(), 0, 0, 0);
-	var then = new Date(this.getFullYear(), 0, 1, 0, 0, 0);
-	var time = now - then;
-	var day = then.getDay();
-	(day > 3) && (day -= 4) || (day += 3);
-	return Math.round(((time / Date.DAY) + day) / 7);
+        var now = new Date(this.getFullYear(), this.getMonth(), this.getDate(), 0, 0, 0);
+        var then = new Date(this.getFullYear(), 0, 1, 0, 0, 0);
+        var time = now - then;
+        var day = then.getDay();
+        (day > 3) && (day -= 4) || (day += 3);
+        return Math.round(((time / Date.DAY) + day) / 7);
 };
 
 /** Checks dates equality (ignores time) */
 Date.prototype.equalsTo = function(date) {
-	return ((this.getFullYear() == date.getFullYear()) &&
-		(this.getMonth() == date.getMonth()) &&
-		(this.getDate() == date.getDate()));
+        return ((this.getFullYear() == date.getFullYear()) &&
+                (this.getMonth() == date.getMonth()) &&
+                (this.getDate() == date.getDate()));
 };
 
 /** Prints the date in a string according to the given format. */
 Date.prototype.print = function (frm) {
-	var str = new String(frm);
-	var m = this.getMonth();
-	var d = this.getDate();
-	var y = this.getFullYear();
-	var wn = this.getWeekNumber();
-	var w = this.getDay();
-	var s = new Array();
-	s["d"] = d;
-	s["dd"] = (d < 10) ? ("0" + d) : d;
-	s["m"] = 1+m;
-	s["mm"] = (m < 9) ? ("0" + (1+m)) : (1+m);
-	s["y"] = y;
-	s["yy"] = new String(y).substr(2, 2);
-	s["yyyy"] = y;
-	s["w"] = wn;
-	s["ww"] = (wn < 10) ? ("0" + wn) : wn;
-	with (Calendar) {
-		s["D"] = _DN3[w];
-		s["DD"] = _DN[w];
-		s["M"] = _MN3[m];
-		s["MM"] = _MN[m];
-	}
-	var re = /(.*)(\W|^)(d|dd|m|mm|y|yy|yyyy|MM|M|DD|D|w|ww)(\W|$)(.*)/;
-	while (re.exec(str) != null) {
-		str = RegExp.$1 + RegExp.$2 + s[RegExp.$3] + RegExp.$4 + RegExp.$5;
-	}
-	return str;
+        var str = new String(frm);
+        var m = this.getMonth();
+        var d = this.getDate();
+        var y = this.getFullYear();
+        var wn = this.getWeekNumber();
+        var w = this.getDay();
+        var s = new Array();
+        s["d"] = d;
+        s["dd"] = (d < 10) ? ("0" + d) : d;
+        s["m"] = 1+m;
+        s["mm"] = (m < 9) ? ("0" + (1+m)) : (1+m);
+        s["y"] = y;
+        s["yy"] = new String(y).substr(2, 2);
+        s["yyyy"] = y;
+        s["w"] = wn;
+        s["ww"] = (wn < 10) ? ("0" + wn) : wn;
+        with (Calendar) {
+                s["D"] = _DN3[w];
+                s["DD"] = _DN[w];
+                s["M"] = _MN3[m];
+                s["MM"] = _MN[m];
+        }
+        var re = /(.*)(\W|^)(d|dd|m|mm|y|yy|yyyy|MM|M|DD|D|w|ww)(\W|$)(.*)/;
+        while (re.exec(str) != null) {
+                str = RegExp.$1 + RegExp.$2 + s[RegExp.$3] + RegExp.$4 + RegExp.$5;
+        }
+        return str;
 };
 
 // END: DATE OBJECT PATCHES
@@ -1717,7 +1716,7 @@
     // first-time call, create the calendar
     if ( dateformat == null ) {
        var dateformat = 'y-mm-dd';
-    }		
+    }
     var cal = new Calendar(true, null, selected, closeHandler, dateformat);
     calendar = cal;             // remember the calendar in the global
     cal.setRange(1900, 2070);   // min/max year allowed
@@ -1742,7 +1741,7 @@
     // first-time call, create the calendar
     if ( dateformat == null ) {
        var dateformat = 'y-mm-dd';
-    }		
+    }
     var cal = new Calendar(true, defaultdate, selected, closeHandler, dateformat);
     calendar = cal;             // remember the calendar in the global
     cal.setRange(1900, 2070);   // min/max year allowed
@@ -1821,4 +1820,4 @@
   }
 }
 
-// ********************
+