$("img").each(function(){
  i = $(this).attr('src');
  $(this).attr('src','')
  $(this).load(function(){
    $(this).data('loaded','true');
  });
  $(this).attr('src',i);
});

Used this on a project to determine whether images were loaded or not. In an image carousel, for example, you could test the next/clicked image before advancing the slide, and if 'loaded' wasn't 'true', you could add a "loading" class and attach a new .load handler to remove the class and advance when the image finished loading.

Has the image loaded?

image, jquery

jQuery