var newwindow = null;
	
	function newWin (url,w,h,menubar,toolbar,location,scrollbar,resizable) {
		if (newwindow == null || newwindow.closed ){
      		newwindow = window.open(url, "appWin", "menubar=" + menubar + ", toolbar=" + toolbar + ",location=" + location + ",resizable=" + resizable + ",scrollbars=" + scrollbar + ",left=" + (screen.width - w) / 2 + ",top=" + (screen.height - h) / 2 + ",width=" + w + ",height=" + h);
      	}
		else{
			newwindow.focus();
		}
	}
	
	// this function close the div popup
	function closeDivPopup(div) {
		var congratulationPopup = document.getElementById(div);
		congratulationPopup.style.display = "none";
	}
	
	// this function open a div popup
	function openDivPopup(div) {
		var congratulationPopup = document.getElementById(div);
		congratulationPopup.style.display = "block";
		congratulationPopup.style.top = "130px";
		congratulationPopup.style.left = "250px";
	}
		
	
	// this shows the survey popup
	function showSurveyPopup(){		
		newWin ('http://www.gmsurveys2.com/se.ashx?s=7C7FD94F1608315B',820, 450,'no','no','no','yes','yes');
	}