[jQuery] Request for comments on code snippet.

[[EMAIL PROTECTED]]

i've just started using jQuery, and I'm having lots of fun.

I have the following code snippet. What it does is looks for all
instances of a <td>true</td> and <td>false</td> and replaces the
content with an image of a tick and cross.

The snippet is

                $("td").each(function(){
                        if (this.innerHTML == 'true') {
                                this.innerHTML = '<img 
src="$base/images/true.png">';
                        }
                        if (this.innerHTML == 'false') {
                                this.innerHTML = '<img 
src="$base/images/false.png">';
                        }
                });

I would just like to throw it out there, is there a neater way of
using jQuery to perform the same function ? I tried

$("td:contains('true')")

, but the <td> can be nested, which causes the parent <td> to be
replaced.