function pop_support(){
window.open("https://server.iad.liveperson.net/hc/51262989/?cmd=file&file=visitorWantsToChat&site=51262989&referrer="+escape(document.location),"Window1","menubar=no,width=430,height=360,toolbar=no");
}

var popUpWin=0;

function popUpWindow(URLStr, 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=1,resizable=no,copyhistory=yes,width='+width+',height='+height+'');

}