function popUp(URL) {
day = new Date();
id = day.getTime();
screentop = ((screen.height/2)-(437/2));
screenleft = ((screen.width/2)-(660/2))
eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=0,width=660,height=437,left = 0,top = 0');");
eval("page"+id+".window.moveTo(screenleft,screentop)")
}