function popUp(URL) {
   day = new Date();
   id = day.getTime();
   eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=1,width=550,height=350,left = 200,top = 300');");
}