function openWindow(page,w,h)
{
 if ((window.windowHandle) && (!window.windowHandle.closed) && (popuploaded==page))
  {
   window.windowHandle.focus();
   }
   else
   {
  if(window.windowHandle) window.windowHandle.close();
   windowHandle = window.open(page,'windowName',"scrollbars=yes,width=" + w +",height=" + h + ",toolbar=no,resizable=no");
   }
    window.windowHandle.focus();
    popuploaded=page;
 }