jQuery(document).ready(function() {     
 
    let arg = base.read_exVal('#external-base-val');
    Metronic.init(); // init metronic core components
    Layout.init(); // init current layout
    Demo.init(); // init demo features
    $.backstretch([
            arg['background_url']
    ], {duration: 3000, fade: 750});
});