title: set dropdown value by text using jquery
body: <p>I have a dropdown as:</p>
  
  <pre><code>&lt;select id="HowYouKnow" &gt;
    &lt;option value="1"&gt;FRIEND&lt;/option&gt;
    &lt;option value="2"&gt;GOOGLE&lt;/option&gt;
    &lt;option value="3"&gt;AGENT&lt;/option&gt;&lt;/select&gt;
  </code></pre>
  
  <p>In the above dropdown i know the text of the dropdown. How can set the value of the dropdown in document.ready with the text using jquery?</p>