Class YAHOO.ext.KeyMap

// map one key by key code
 var map = new YAHOO.ext.KeyMap('my-element', {
     key: 13,
     fn: myHandler,
     scope: myObject
 });
 
 // map multiple keys to one action by string
 var map = new YAHOO.ext.KeyMap('my-element', {
     key: "a\r\n\t",
     fn: myHandler,
     scope: myObject
 });
 
 // map multiple keys to multiple actions by strings and array of codes
 var map = new YAHOO.ext.KeyMap('my-element', [
    {
        key: [10,13],
        fn: function(){ alert('Return was pressed'); }
    }, {
        key: "abc",
        fn: function(){ alert('a, b or c was pressed'); }
    }, {
        key: "\t",
        ctrl:true,
        shift:true,
        fn: function(){ alert('Control + shift + tab was pressed.'); }
    }
]);