[jQuery] How to turn on logging in custom parsers?

Hi,

I'm trying to write a custom parser to sort column 5 of this table:

http://m100.marketocracy.com/tablesort/TC_test.html

Column 5 can contain both positive and negative numbers. Negative
numbers are supposed to be represented by enclosing the number in
parenthesis (), and turning them red. So I've created a custom parser
named "parenNegative" which is designed to recognize such numbers and
convert them to a sortable form.

Here's the code for the custom parser:

ts.addParser({
id: "parenNegative",
is: function(s) {
$.tablesorter.log("at parenNegative");
return /\(.*\)</.test(s);
},
format: function(s) {
return
jQuery.tablesorter.formatFloat(s.replace(/\((.*\))</g, "-$1<"));
},
type: "numeric"
});

And in pastie, in case it's formatted weird:

http://www.pastie.org/564141

I put the parser in a custom version of jquery.tablesorter.js (named
jquery.tablesorter_mtaco.js), which I call instead of
jquery.tablesorter.js. The custom version is identical to the original
version, aside from having my new parser and some slightly modified
logging statements.

I've verified that my custom version of jquery.tablesorter.js is what
is being called. To verify, I turned on debugging, and added a new word
to one of the existing benchmark statements.

Unfortunately, my parser doesn't work, and I'm trying to figure out
why. I tried to put in some logging statements, such as the
$.tablesorter.log("at parenNegative"); statement above. However, none
of the logging statements are ever raised when I reload the page. I've
tried the following:

$.tablesorter.log("message");
$.tablesorter.benchmark("message", time);
log ("message");

I believe that the parser is being called because the debugging output
lists the parenNegative parser for column 5. (See screenshot).

Any suggestions? Thanks!

Chris