[jQuery] load() confusion

[jQuery] load() confusion


I'm new to JQuery
I can't get load() to work with a div class:
<script type='text/javascript'>
    jQuery(document).ready(function($) {
        $(".Loader").load(function(){
            alert("bang");
        });
    });
</script>
<div class="Loader">
<img src="http://home.arcor.de/poesenau/Witness-Tree.JPG"
width="1200" height="1600" />
</div>
if I target the IMG, then it works fine, but how come it doesn't work
with the div?