title: document.getElementById('').length = 0 doesn't work under Win7
body: <p>I have a select list:</p>
  
  <pre><code>&lt;select id="sel"&gt;
       &lt;option&gt;text1&lt;/option&gt;
       &lt;option&gt;text2&lt;/option&gt;
       &lt;option&gt;text3&lt;/option&gt;
       &lt;option&gt;text4&lt;/option&gt;
  &lt;/select&gt;
  </code></pre>
  
  <p>I want to delete all items, without <code>for</code> loop.
  I tried:</p>
  
  <pre><code>document.getElementById('sel').length = 0;
  </code></pre>
  
  <p>But this doesn't work in some browsers.<br>
  Any ideas?</p>
  
  <p>Thanks</p>