jquery prevent multiple selection of radiobutton
<p>I have multiple forms each with a radiobutton group
Basically I want to only allow the user to select one of the options once.
In my case only allow selection of Yes once</p>

<p>You can see the behaviour in the link below</p>

<ol>
<li>select Yes option on first row (remains at NO - what i want)</li>
<li>select No option on second row</li>
<li>select Yes option on first row (allowed because no other YES selected)</li>
<li>select Yes option for second row (switches selection to NO on first row instead of remaining at NO)</li>
</ol>

<p>Seems to ignore the selection in this line of the jquery code</p>

<p>$('input:radio[name=$(tmp)]]')[<a href="http://jsfiddle.net/dbutler/6EQHE/4" rel="nofollow">1</a>].checked = true;</p>

<p><a href="http://jsfiddle.net/dbutler/6EQHE/4" rel="nofollow">Running example</a></p>
