title: fnDraw() in datatables.net
body: <p>Can't refresh dataTable by <code>fnDraw()</code>
  Note: The table is initialised &amp; displayed correctly before clicking the 'refresh' link</p>
  
  <pre class="lang-js prettyprint-override"><code>function rfsh(){
      var oTable = $('#grd_table').dataTable();
      oTable.fnDraw();
  }
  </code></pre>
  
  <pre class="lang-html prettyprint-override"><code>&lt;a href='#' onclick='rfsh()'&gt;Refresh Table&lt;/a&gt; 
  </code></pre>
  
  <p>If I use <code>oTable.fnClearTable();</code> It works. The table data gets cleared.</p>
  
  <p>If <code>oTable.fnDraw();</code> is used, the table doesn't get refreshed.</p>
  
  <p>What I may be doing wrong in calling <code>oTable.fnDraw();</code> ?</p>