function openCenter(URL,name,width,height){


   var left = Math.floor( (screen.width - width) / 2);
   var top = Math.floor( (screen.height - height) / 2);

   var winParms = "scrollbars=yes,scrollable=yes,resizable=no,top=" + top + ",left=" + left + ",height=" + height + ",width=" + width;
	window.open(URL,name,winParms);

	return;

}