function Center_Win(thePage){
var theLeft = (screen.availWidth-630)/2;
var theTop = (screen.availHeight-680)/2;
window.open(thePage,"special","toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=yes,resizable=no,left="+theLeft+",top="+theTop+",width=630,height=680");
}