(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([
      "http://farm3.static.flickr.com/2661/3792282714_90584b41d5_b.jpg",
      "http://farm2.static.flickr.com/1266/1402810863_d41f360b2e_o.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!");
      }
   });

});
*/