On a webcombo. I have a clientSideEvents AfterSelectChange.

If runs a client side script as follow.

function validate() {
 
 
			if (document.getElementById("<%=wcPerCitizenship.ClientID %>"))
				 {
				var retval = confirm("Are you sure you want to change this?");
				if (retval) 
					{
					return true;
					}
				else 
					{
					return false;
					}
				  }
							}


So what I am trying to do is, if the retval is true than allow the change, if it is false than do not allow the change.
When I select either it seems to allow the change anyway.

Any help on this?  DO I have the correct event to do this with?