( function($) {
    var W = self;
    
    function changeBackgroundPicture() {
        $("#bandeauAleatoire").append('<div id="loader"><p><img alt="" class="loader" src="img/home/loader.gif" /><br />Loading&hellip;</p></div>');
        $.get(IMAGE_TO_LOAD, function() {
            var img = $("#bandeau").get(0);
            $("#bandeauAleatoire").fadeOut(1000, function() {
                $("#loader").remove();
                ImageSrcHelper.changeSrc(img, IMAGE_TO_LOAD);
                $("#bandeauAleatoire").fadeIn(2000);
            });
        });
		var IMAGE_TO_LOAD = "img/home/bg-home-chapo-" + Math.floor(Math.random() * (3 - 0.0001)) + ".png";
		setTimeout(changeBackgroundPicture,20000);
    }
    
    $(W).load( function() {
        changeBackgroundPicture();
    });
})(jQuery);

ImageSrcHelper = {
    "changeSrc" : function(img, src) {
	    img.src = src;
    }
}