[jQuery] cancelling default click handler for

[Bill]

I have markup that looks like this:

<div id="phrase:witness%2Bwhereof" class="as-s-comp">
    <label class="checkbox" title="witness whereof">
        <input type="checkbox" value="witness whereof"/>
        witness whereof
    </label>
    <a class="cl" href="#">(4104)</a>
</div>

When I click anywhere within the label, the checkbox toggles from its
previous state. I'd like to cancel this behavior, so that clicking
within the label has no effect on the checkbox. How would I use jQuery
to accomplish this?

Thanks in advance for any help with this.

--Bill