function popUp(URL,width,height) {
    if (!width)
        var width = 350;
    if (!height)
        var height = 250;
    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="+width+",height="+height+"');");
}