If you’re running this after the image already has a set source, you need to do an additional check for caches images (who fired the event, just before you added an event handler listening for it). You can do that like this:
$("#myimageid").on('load', function() {
alert('Image Loaded');
}).each(function() {
if(this.complete) $(this).load();
});
Update for later versions of query, use:
if(this.complete) $(this).trigger('load');
Using (this).load();
will produce a Cannot read property 'indexOf' of undefined
error