NOMADISTA COLLECTION commented on Add to Cart Pop-up Window app?

My current theme Masonry does support it using the Ajax API, I just don't understand how to edit the code to show an entire window of HTML formatted content instead of just the text from a particular div:

Currently it looks like this:

//Added, show message & update cart display
            window.showQuickPopup("Added to cart, thank you!", $form.find('input[type="submit"]:first'));
            $.get(shopifyAjaxStorePageURL, function(data){
                var $newCartObj = $(data).find('#navpanel .cartsummary');
                var $currCart = $('#navpanel .cartsummary');
                if($currCart.length == 0) {
                    $('#shoplogo').after($newCartObj);
                } else {
                    $currCart.html($newCartObj.html());
                }
            });

    //Function to show a quick generic text popup above an element
    window.showQuickPopup = function(message, $origin){
        var $popup = $('<div>').addClass ('simple-popup');
        var offs = $origin.offset();
        $popup.html(message).css({ 'left':offs.left, 'top':offs.top }).hide();
        $('body').append($popup);
        $popup.css('margin-top', - $popup.outerHeight() - 10);
        $popup.fadeIn(200).delay(3500).fadeOut(400, function(){
            $(this).remove();
        });
    };
    {% endif %}