javascript copying element value, where element name has a period
<p>If an html element id has no period in it, then copying between elements is of course trivial, e.g.:</p>

<pre><code> var theForm = document.paymentForm;
 theForm.BillStreet1.value = theForm.ShipStreet1.value;
</code></pre>

<p>I've got a case where I need to have period in my ids, namely id="bill.street1" and id="ship.street1", and the following doesn't work :-(</p>

<pre><code> theForm.bill.street1.value = theForm.ship.street1.value;
</code></pre>

<p>Can you please let me know how to handle the period?  Does jquery make this simpler?</p>
