function popUp(URL, WIDTH, HEIGHT) {
   day = new Date();
   id = day.getTime();
   eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=1,width=" + WIDTH +",height=" + HEIGHT + ",left = 200,top = 100');");
}