function messageAlert(title,message,width,height){

    // open a welcome message as soon as the window loads
    Shadowbox.open({
        content:    '<div class="message-alerte">' + message + '</div>',
        player:     "html",
        title:      title,
        height:     height,
        width:      width
    });

};

function imageAlert(image,title){

    // open a welcome message as soon as the window loads
    Shadowbox.open({
        content:    image,
        player:     "img",
        title:      title
    });

};