function livesupport(url)
{
 var popwidth=700; 
 var popheight=690; 
 var positionX=((screen.availWidth / 2) - popwidth / 2); 
 var positionY=((screen.availHeight / 2) - popheight / 2); 
 livepop=window.open('','','toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0,fullscreen=0,width='+popwidth+',height='+popheight+',top='+positionY+',left='+positionX+',');
 livepop.blur(); 
 livepop.resizeTo(popwidth,popheight); 
 livepop.moveTo(positionX,positionY); 
 livepop.location=(url); 
 livepop.focus();
}