function popUpWindow(URLStr, popName, width, height, left, top, p_scroll)
{
  //if(p_scroll=="yes") p_scroll="yes";
  p_scroll="yes";
  vpopName =popName;
  if(!left) left=(screen.availWidth-width)/2;
  if(!top) top=(screen.availHeight-height)/2;
  vpopName = window.open(URLStr, popName, 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars='+p_scroll+',resizable=no,copyhistory=yes,width='+width+',height='+height+',left='+left+', top='+top+',screenX='+left+',screenY='+top+'');
}