function popcertificate() {
			
					var w = 640;
					var h = 400;
					var winl = (screen.width - w) / 2;
					var wint = (screen.height - h) / 2;
					var winprops = 'toolbar=0,menubar=0,scrollbars=0,status=0,resizable=1,left='+winl+',top='+wint+',height='+h+',width='+w;
					popit = window.open('/PromotionCenter/certificate/certificatedisplay.cfm?layoutid=2&truepopup=1', '_blank', winprops);
			
				}