Tablesorter plugin does not sort numeric correctly in IE8

Tablesorter plugin does not sort numeric correctly in IE8

Found a flaw in tablesorter when using IE8 and having numeric column containing more than just text. In my case, an anchor (<td>1234<a name="a1"></a></td>):

Line 309:
  1. text = node.innerHTML;
must be replaced with:
  1. text = $(node).text();

to be able to parse the cell content correctly.