Your functions and variables are in a global namespace. That's not a good sign. Sure if you are absolutely sure this code will never run alongside existing code, that's okay. But if you are working with code from multiple places, that's perhaps not the wisest approach. I guess you have no long-term intentions of allowing third party plugins and modules?
You're being too-clever using commas effectively as statement separators (or maybe your JS compressor is), and boolean operators instead of if statements. Shows off that you know how to flex JavaScript, but probably concerns whether you'd be a good fit into an existing team of developers.
I wonder if concatanating chunks of strings interspersed with variables is the best course of action. I'm tempted to suggest to collate the big strings together as static text with replaceable tokens (or perhaps bring in an existing templating language like mustache).
I worry about <div class="clearDiv"> being used to clear floats. I'm surprised that blueprint forced you into that.
jQuery constructs like: $(a).parent().parent().attr("id") and $(a).parent().parent().prev are brittle, they assume/enforce a particular markup. Which means if you need that extra wrapper div, now you need to update each of those constructs.
Thanks for checking out the code. I am aware that JavaScript's "bad parts" are used throughout. This is of course a prototype built rather quickly. In the end all of this will be done using backbone.js (and will be much faster). If I approached this pedantically, it would have taken me much longer.
