'Save as web' tab navigation with jQuery - Part 1

A recent newsgroup question asked whether it would be possible to add tab style navigation to Visio's Save As Web Page output.  There are a number of ways you might tackle this and here is a JavaScript based approach and more specifically, one that uses JQuery. 

You can see a live example here, but note that this is an Internet Explorer solution as only IE supports VML, (the vector based image format that Visio generates). 

I'll split this into two posts.  The first will look at how to create the functionality and the second, if you're interested, will focus on what the code is actually doing.