(function($) {
    var imgList = [];
    $.extend({
        preload: function(imgArr, option) {
            var setting = $.extend({
                init: function(loaded, total) {},
                loaded: function(img, loaded, total) {},
                loaded_all: function(loaded, total) {}
            }, option);
            var total = imgArr.length;
            var loaded = 0;

            setting.init(0, total);
            for(var i in imgArr) {
                imgList.push($("<img />")
                    .attr("src", imgArr[i])
                    .load(function() {
                        loaded++;
                        setting.loaded(this, loaded, total);
                        if(loaded == total) {
                            setting.loaded_all(loaded, total);
                        }
                    })
                    );
            }

        }
    });
})(jQuery);
$(function() {

    $.preload([
        "/assets/img/common/bkg-discos.jpg",
        "/assets/img/common/bkg-vaquitas.jpg",
        "/assets/img/common/bkg-inicio-pu.jpg",
        ], {
            init: function(loaded, total) {
                $("#indicator").html("Loaded: "+loaded+"/"+total);
            },
            loaded: function(img, loaded, total) {
                $("#indicator").html("Loaded: "+loaded+"/"+total);
                $("#full-screen").append(img);
            },
            loaded_all: function(loaded, total) {
                $("#indicator").html("Loaded: "+loaded+"/"+total+". Done!");
            }
        });

});