SO fiddle
Test Fiddle mainly for SO Questions
by Nick Craver
HTML
<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/overcast/jquery-ui.css">
<div id='div1'>
<div id='div2'>
</div>
</div>
CSS
div { padding: 50px; border: solid 1px #ddd; }
JavaScript
$('div').bind('click', function(event){
alert(event.target.id);
event.stopPropagation();
});