//PART 1 js\aw_ajaxcartpro\ajaxcartpro.js

    fire: function(url, parameters, observer) {
        var me = this;
        this.ui.observer = observer;
        this.ui.beforeFire();

        var parameters = parameters || {};
        parameters['block[]'] = [];
        Object.keys(me.config.targetsToUpdate).each(function(k){
            if (me.config.targetsToUpdate[k].updateOnActionRequest) {
                parameters['block[]'].push(k);
            }
        });
        this.connector.sendRequest(url, parameters,
            function(response) {
                var isResponseHasBlock = Object.values(response.block).without(null).length > 0;
                if (isResponseHasBlock) {
                    var isSuccessUpdate = me.callUpdaters(response.block);
                    if (!isSuccessUpdate) {
                        document.location.reload();
                        return;
                    }
                    me.stopObservers();
                    me.startObservers();
                    return;
                }
                if (response.redirect_to) {
                    me.msg = response.msg;
                    me.fire(response.redirect_to, parameters, observer);
                    return;
                }
                me.update(function(json){
                    document.location.reload();
                }, {
                    actionData: Object.toJSON(response.action_data)
                });
            },
            function(json){
                observer.fireOriginal(url, parameters, json);
            }
        );
    },

//PART 2 js\aw_ajaxcartpro\observers\clickOnAddToCartInCategoryList.js

    fireOriginal: function(url, parameters, json ) {
        if( typeof json === "undefined" ){
            this._oldSetLocation(url);
        }else if( json.success === false ){
            jQuery('#ajaxcartpro-progress').hide();
            jQuery('#acp-overlay').hide();

            var msgBlock = new Element('div');
            msgBlock.id = "grouped-popup";
            jQuery('#main .padder').append(msgBlock);

            var msgBlockUl = new Element('ul');
            msgBlock.appendChild( msgBlockUl );
            msgBlockUl.className = "messages";

            var liU = new Element('li');
            liU.className = "error-msg";
            msgBlockUl.appendChild( liU );

            var msgBlockUl2 = new Element('ul');
            liU.appendChild( msgBlockUl2 );

            var msg = json.msg;
            msg.each(function(message){
                var li = new Element('li');
                li.innerHTML = message;
                msgBlockUl2.appendChild(li);
            });

            jQuery("div#grouped-popup").bPopup({
                opacity: 0.3,
                positionStyle: "fixed",
                modalColor: "#fefeff",
                width: "500px"
            });
        } else {
            this._oldSetLocation(url);
        }
    },