title: Prevent Multiple Selections of Same Value
body: <p>I am working on a project where I have a form that will have multiple 'select' inputs, all with the same set of options.  I would like to use jquery to disable/hide an option in the rest of the 'select' inputs, if it has already been selected.</p>
  
  <p>For example:</p>
  
  <pre><code>&lt;select id="1"&gt;
    &lt;option value="volvo"&gt;Volvo&lt;/option&gt;
    &lt;option value="saab"&gt;Saab&lt;/option&gt;
    &lt;option value="mercedes"&gt;Mercedes&lt;/option&gt;
  &lt;/select&gt;
  
  &lt;select id="2"&gt;
    &lt;option value="volvo"&gt;Volvo&lt;/option&gt;
    &lt;option value="saab"&gt;Saab&lt;/option&gt;
    &lt;option value="mercedes"&gt;Mercedes&lt;/option&gt;
  &lt;/select&gt;
  </code></pre>
  
  <p>The user chooses 'Volvo' on the first select.  I would like it removed from the second select.</p>
  
  <p>Any info would be greatly appreciated.</p>