detect checkbox state change
<p>I want to detect if user checks or unchecks a check box within an iframe and set a flag like so. But it does not seem to work as expected. Any pointers on the error on the code?</p>

<pre><code>jQuery("#frameName").contents().find(":checkbox").bind('change', function(){        
            val = true;
            alert("changed");
    });
</code></pre>

<p>But I can detect if a checkbox is checked by using</p>

<pre><code>var val = jQuery("#frameName").contents().find(":checkbox").is(":checked");
</code></pre>

<p>I want to be able to detect any state change on a checkbox and set the flag.</p>
