Show and Hide a ModalPopupExtender from javascript

Swedish version of this entry

To show a modal popup handled by a ModalPopupExtender from javascript you need to set the BehaviorID property:

<ajaxToolkit:ModalPopupExtender...
BehaviorID="MyModalPopupExtender"
... /> 

The script for showing and hiding the popup:

<script language="javascript">
   function hidePopup()
   {
       $find('MyModalPopupExtender').show();
   }
   function hidePopup()
   {
       $find('MyModalPopupExtender').hide();
   }
</script>