title: Linkify / Clickable Text-URLs but ignore those already wrapped in "a href"'s
body: <p>I’m working on a linkification script in jQuery which sole purpose is to take all the URLs in a textarea and change it to clickable links, in other words, to wrap a <code>a href</code> tag around them.  </p>
  
  <p>The script that I’m using actually works fine but the problem starts when a link is added the “correct” HTML way, with the <code>a href</code> tag around them.<br>
  Please go to the <a href="http://jsfiddle.net/Mestika/uMDAb/1/" rel="nofollow">jsFiddle</a> link to see my script in action.  </p>
  
  <p>For example, if I write this in my textarea: <code>&lt;a href=“http://google.com”&gt;visualize.com&lt;/a&gt;</code> it become: <code>&lt;a href="&lt;a href='http://google.com' target=‘_blank'&gt;http://google.com&lt;/a&gt;visualize.com&lt;/a&gt;</code> which of cause does not work and mess everything up.</p>
  
  <p>How do I apply the linkification only on the parts (<strong>http://</strong> and <strong>www.</strong>) and NOT those cases where the link is already wrapped in a <code>a href</code> tag?</p>