function showMessageUI(data){

    var $gUI = jQuery('div#ajax_feedback');

    var gUI_class;

    if (data.result)
        gUI_class = 'success';
    else
        gUI_class = 'failed';

    $gUI.addClass(gUI_class);


    $gUI.find('h1').html(data.title);
    $gUI.find('p').html(data.message);

    jQuery.blockUI({
        message: $gUI,
        fadeIn: 700,
        fadeOut: 700,
        timeout: 4000,
        showOverlay: false,
        centerY: false,
        css: {
            width: '350px',
            top: '10px',
            left: '10px',
            right: '',
            border: 'none',
            padding: '5px',
            backgroundColor: '#FFF',
            '-webkit-border-radius': '10px',
            '-moz-border-radius': '10px',
            opacity: .95,
            color: '#000'
        },
        onUnblock: function(){
            $gUI.removeClass(gUI_class);
            $gUI.find('h1').empty();
            $gUI.find('p').empty();
        }
    });
}

function addToCart(url, id, qty){

    $.post(url,
    {
        'type':'insert',
        'item[1][id]': id,
        'item[1][qty]': qty
    },
    showMessageUI,
    'json'
    );
}