javascript stubbornness
<p>I create two sets of code. Both seem the same but one is working and one is not.</p>

<p><a href="http://jsfiddle.net/tM9Gu/" rel="nofollow">http://jsfiddle.net/tM9Gu/</a> is not working</p>

<p><a href="http://jsfiddle.net/gDxqj/" rel="nofollow">http://jsfiddle.net/gDxqj/</a> is working</p>

<p>Working means when you click on "other" a new textfield opens. Not working means it doesn't.</p>

<p>What is the difference?</p>

<pre><code>&lt;div class="rButtons"&gt;
    &lt;input type="radio" name="numbers" value="10" onclick="uncheck();" /&gt;10
    &lt;input type="radio" name="numbers" value="20"  onclick="uncheck();" /&gt;20
    &lt;input type="radio" name="numbers" value="other" onclick="check(this);"/&gt;other
    &lt;input type="text" id="other_field" name="other_field" onblur="checktext(this);"/&gt;
&lt;/div&gt;
</code></pre>
