title: DataTables and ColumnFilter with percentage column
body: <p>I've added percent column to my datatable using below code:</p>
  
  <pre><code>jQuery.extend(jQuery.fn.dataTableExt.oSort, {
      "percent-pre": function (a) {
          var x = (a == "-") ? 0 : a.replace(/%/, "");
          return parseFloat(x);
      },
  
      "percent-asc": function (a, b) {
          return ((a &lt; b) ? -1 : ((a &gt; b) ? 1 : 0));
      },
  
      "percent-desc": function (a, b) {
          return ((a &lt; b) ? 1 : ((a &gt; b) ? -1 : 0));
      }
  });
  </code></pre>
  
  <p>This way I can sort column that has '%'.</p>
  
  <p>I also added ColumnFilter plugin (<a href="http://jquery-datatables-column-filter.googlecode.com/svn-history/r73/trunk/index.html" rel="nofollow">Plugin Link</a>) to my table to be able to filter individual columns.</p>
  
  <p>When I save and display percentage value as numeric I'm able to filter that column:
  <a href="http://jsfiddle.net/Misiu/LVSZF/" rel="nofollow">Fiddle Demo</a></p>
  
  <p>But when I set that column type to percentage and try to filter same column I always get empty data:
  <a href="http://jsfiddle.net/Misiu/5pbP7/" rel="nofollow">Fiddle Demo</a></p>
  
  <p>Open first fiddle and click 'Load data' and try to set range for '%' column - everything is working. Now do the same with second one - You'll get empty table.</p>
  
  <p>How can I apply range filter to column with percent values?</p>