function popup(theURL) {
var left;
var top;
top = ((screen.height -668) / 2);
left =	((screen.width - 1000) / 2);
window.open(theURL, "", "toolbar=0,scrollbars=0,location=0,status=0,menubar=0,directories=0,resizable=0,width=1000,height=668,left="+left+",top="+top+"")
}