Better support for HTML in the table cells. The filter will now properly strip out HTML, unwanted line breaks and extra white space before matching search text.

Better performance for tables with lots of rows.

Additional parameter (underline), giving the option to underline search text whilst the filter is running... good for tables with lots of rows where the filter may take a second. (not in Opera)

Fixed behaviour of search when set up to use no wild card.

As before; Each table you apply the script to must be well formed; containing at least a tbody and a thead. The script doesn't yet compensate for any cells that have a colspan greater than 1.