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">
<script src="http://brandonaaron.net/javascripts/plugins/mousewheel.js"></script>
<div id="myElem">
 Use your mouse wheel in here
</div>

CSS

#myElem { width: 250px; height: 250px; border: solid 1px #ddd; padding: 20px; }

JavaScript

$("#myElem").mousewheel(function() {
  clearTimeout($.data(this, 'timer'));
  $.data(this, 'timer', setTimeout(function() {
     alert("Haven't scrolled in 250ms!");
     //do something
  }, 250));
});