function PopoffWindow(windowName,windowWidth,windowHeight,URL,shouldResize,shouldScroll) {
	var availableWidth = screen.availWidth;
   	var availableHeight = screen.availHeight;

   	var windowLeft = (availableWidth - windowWidth) / 2;
   	var windowTop = ((availableHeight - windowHeight) / 2) - 16;
   		
	newWindow = window.open(URL,windowName,"width=" + windowWidth + ",height=" + windowHeight + ",left=" + windowLeft + ",top=" + windowTop + ",location=no,resizable=" + shouldResize + ",scrollbars=" + shouldScroll + ",toolbar=no");
	newWindow.focus();
}