function popup(strURL, intWidth, intHeight) {
   var top=(screen.availHeight-intHeight)/2;
   var left=(screen.availWidth-intWidth)/2;
   window.open(strURL , "popup", "width=" + (intWidth) + ", height=" + (intHeight) + ", left=" + left + ", top=" + top + ", alwaysRaised, dependent,scrollbars=no");
}