function PopupCenter(pageURL, title,w,h) {
var left = (screen.width/2)-(w/2);
var top = (screen.height/2)-(h/2);
var targetWin = window.open (pageURL, title, ' width='+w+',height='+h+',resizable=no,toolbar=no,location=no,directories=no,status=no,menubar=no, scrollbars=yes, top='+top+', left='+left);
} 
// JavaScript Document