function pop(page) {
   openwin=window.open(page,"win","resizable=no,scrollbars=yes,status=no,height=250, width=400, scrollbars=yes, menubar=no");
}

function pop2(page) {
   openwin=window.open(page,"win","resizable=no,scrollbars=yes,status=no,height=600, width=500, scrollbars=yes, menubar=no");
}

var popUpWin=0;
function popUpWindow(URLStr, scrollbar, resizable, left, top, width, height)
{
  if(popUpWin)
  {
    if(!popUpWin.closed) popUpWin.close();
  }
  popUpWin = open(URLStr, 'popUpWin', 'toolbar=no,location=no,directories=no,status=no,menub ar=no,scrollbars='+scrollbar+',resizable='+resizable+',copyhistory=yes,width='+width+',height='+height+',left='+left+', top='+top+',screenX='+left+',screenY='+top+'');
}