Index: openacs-4/packages/calendar/www/mini-calendar.adp
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/calendar/www/mini-calendar.adp,v
diff -u -r1.24.2.1 -r1.24.2.2
--- openacs-4/packages/calendar/www/mini-calendar.adp	21 Oct 2022 13:20:22 -0000	1.24.2.1
+++ openacs-4/packages/calendar/www/mini-calendar.adp	30 Mar 2023 15:17:01 -0000	1.24.2.2
@@ -78,5 +78,5 @@
   #acs-datetime.is# @today@
   </p>
 
-  <formtemplate id="go-to-date"></formtemplate>
+  <formtemplate id="@form_name@"></formtemplate>
 
Index: openacs-4/packages/calendar/www/mini-calendar.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/calendar/www/mini-calendar.tcl,v
diff -u -r1.23.2.5 -r1.23.2.6
--- openacs-4/packages/calendar/www/mini-calendar.tcl	23 Mar 2023 17:12:41 -0000	1.23.2.5
+++ openacs-4/packages/calendar/www/mini-calendar.tcl	30 Mar 2023 15:17:01 -0000	1.23.2.6
@@ -11,7 +11,13 @@
     set base_url [ad_conn url]
 }
 
-ad_form -name go-to-date -method get -has_submit 1 -action $base_url  \
+#
+# Do not conflict with other portlet instances being rendered on the
+# same page.
+#
+set form_name go-to-date-[clock microseconds]
+
+ad_form -name $form_name -method get -has_submit 1 -action $base_url  \
     -export {page_num} \
     -html {class inline-form} \
     -form {
Index: openacs-4/packages/calendar/www/view-list-display.adp
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/calendar/www/view-list-display.adp,v
diff -u -r1.21 -r1.21.2.1
--- openacs-4/packages/calendar/www/view-list-display.adp	14 Nov 2017 14:49:45 -0000	1.21
+++ openacs-4/packages/calendar/www/view-list-display.adp	30 Mar 2023 15:17:01 -0000	1.21.2.1
@@ -10,7 +10,7 @@
 <a href="@period_url_30@" title="#calendar.events_over_30d#">30</a>
 &nbsp;|&nbsp;
 <a href="@period_url_60@" title="#calendar.events_over_60d#">60</a>&nbsp;]
-<formtemplate id="frmdays">
+<formtemplate id="@form_name@">
   @exported_vars;literal@
   <formwidget id="period_days"/>
 </formtemplate>
Index: openacs-4/packages/calendar/www/view-list-display.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/calendar/www/view-list-display.tcl,v
diff -u -r1.41.2.8 -r1.41.2.9
--- openacs-4/packages/calendar/www/view-list-display.tcl	29 Mar 2023 13:50:50 -0000	1.41.2.8
+++ openacs-4/packages/calendar/www/view-list-display.tcl	30 Mar 2023 15:17:01 -0000	1.41.2.9
@@ -215,7 +215,13 @@
 
 set exported_vars [export_vars -entire_form -no_empty -form -exclude $excluded_vars]
 
-ad_form -name frmdays -has_submit 1 -html {class "inline-form"} -form {
+#
+# Do not conflict with other portlet instances being rendered on the
+# same page.
+#
+set form_name frmdays-[clock microseconds]
+
+ad_form -name $form_name -has_submit 1 -html {class "inline-form"} -form {
     {period_days:integer(number),optional
         {label "[_ calendar.days]"}
         {html {min 1 max 999 size 3 class "cal-input-field"}}