function openWindow(contentURL, windowName, windowWidth, windowHeight, newWindow){
		windowCommponents = 'height=' + windowHeight + ', width=' + windowWidth + ', resizable=yes';
		newWindow = window.open(contentURL, windowName, windowCommponents);
		newWindow.focus()
	} 
	function closeWindow(newWindow) {
		if (newWindow != null) {
			newWindow.close();
			newWindow = null;
		}
	}