var WindowObjectReference;
function OpenRequestedPopup(strUrl, strWindowName)
{
	if(WindowObjectReference == null || WindowObjectReference.closed) {
		WindowObjectReference = window.open(strUrl, strWindowName,"width=750,height=500,left=50,top=50,toolbar=no,directories=no,location=no,resizable=yes,scrollbars=yes, status=yes");
	} else {
		WindowObjectReference.focus();
     	};
}