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="targetDiv">I want to put a ding in the universe.</div>

JavaScript

$(function(){
  $("#targetDiv").click(function(event) {
    if (event.altKey) {
       alert("Alt was down when clicked");
    }
  });
});