function popupWindow(url,wid,hei)
{
    window.open(url,'popupWindow','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,copyhistory=no,width='+wid+',height='+hei+',screenX=0,screenY=0,left=0,top=0;')
}