[jQuery] help with addClass

[browntown]

So I'm working with a client that wants to be able to click an image
to see the rollover state...they then want to click the image again to
be taken to a url.

I'm about to suggest that we change the first click to be a
traditional rollover as it would simplify things and make things less
confusing but I would still like to know how I can achieve the
following.

I want to be able to to add a class to the parent link and then when I
click the link with the new class I want to be taken to the url. I'm
having trouble getting this to work. I can see that the class is being
added as the presentation changes. How can I get jquery to recognize
this new class?

my html looking something like:
<code><a href="#" id="btn_projects_1_link" class="piggybank"><img
src="images/btn_projects_1_up.png" id="btn_projects_1"
class="switchProject" alt="I smell bankin'" border="0" /></a>
                                                                        </code>

my jquery...
<code>
$(document).ready(function(){
        $(".projectLink").click(
                function()
                        {
                                alert('w00t');
                        }
        );
$(".switchProject").click(
                        function()
                                {
                                        var img = $(this).attr("id");
                                        $("#"+img).attr("src", 
"images/"+img+"_down.png");
                                        $("#"+img+"_up2").attr("src", 
"images/"+img+"_down2.png");

                                        
$(this).parent().addClass("projectLink");
                                }
                );
});
</code>