title: How to change two select> option dropdown in the same time
body: <p>I want that when I select an option from one dropdown,at the same time other  dropdown value should change according to the first one.</p>
  
  <p>For example: if I choose 'Value 1' from 'dropdown 1' , then in 'dropdown 2'
  it should change automatically to the same value('Value 1'). </p>
  
  <p>Can anyone help-me please? I thank you in advance!</p>
  
  <p>Here is my Demo.</p>
  
  <p><a href="http://jsfiddle.net/FelipeMartinin/XjuDp/" rel="nofollow">DEMO</a></p>
  
  <pre><code>&lt;select name="" id=""&gt;
    &lt;option value=""&gt;Select&lt;/option&gt;
    &lt;option value=""&gt;Value 1&lt;/option&gt;
    &lt;option value=""&gt;Value 2&lt;/option&gt;
  &lt;/select&gt;
  
  &lt;select name="" id=""&gt;
     &lt;option value=""&gt;Select&lt;/option&gt;
     &lt;option value=""&gt;Value 1&lt;/option&gt;
     &lt;option value=""&gt;Value 2&lt;/option&gt;
  &lt;/select&gt;
  </code></pre>