Weird javascript issue...browser loads a new page

When clicking on a node on the map the browser loads a new page… ? ? ?

This is how it should work:

The error:

You have a couple errors with some other scripts which is preventing the javascript from executing correctly.

It says:
Uncaught TypeError: Object [object Object] has no method ‘addEvent’
k2.js: line 13

Just make sure you load the jQuery script before any other javascript file and you should be good to go.

I’ve commented out the other scripts, but it still seems to have the error.
I’ve also made sure to load the jQuery before everything else.

The jQuery seems to start working but then fails…the bottom box begins to fadeOut when the node is clicked, but its the fadeIn that breaks it.