function PopupWindow(URL) {
    day = new Date();
    id = day.getTime();
    eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=1,scrollbars=1,location=0,statusbar=0,menubar=1,resizable=0,width=800,height=600,left = 560,top = 300');");
}