var goPopX = (screen.width/2)-175;
var goPopY = (screen.height/2)-150;
var loc = left='+goPopX+',top='+goPopY';
function goPop(oldal){
goPopWindow = window.open(oldal,'myWindow','toolbar=no,menubar=no,scrollbars=no,resizable=no,directories=no,status=no,location=no,copyhistory=no,width=630,height=530,left=150,top=150,screenX=150,screenY=150'+loc);
}