var wid = 553;
var hei = 572;
var offLeft = screen.width/2 - wid/2;
var offTop = screen.height/2 - hei/2;
var params = "width="+wid+",height="+hei+",screenX="+offLeft+",screenY="+offTop+",left="+offLeft+",top="+offTop+",toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=0";