title: why my hyperlink tags display as plain text on the browser?
body: <p>In a table structure, I add a hyperlink like this:</p>
  
  <pre><code>&lt;table&gt;
      &lt;tr&gt;
          &lt;a href='http://www.google.com'&gt;link&lt;/a&gt;
      &lt;/tr&gt;
  &lt;/table&gt;
  </code></pre>
  
  <p>But it display as plain text on the browser(IE or firefox) like this:</p>
  
  <pre><code>&lt;a href='www.google.com'&gt;link&lt;/a&gt;
  </code></pre>
  
  <p>not a <strong>link point</strong>.</p>
  
  <p>who can tell me the reason? thankx.</p>