lorax - 11:20 pm on Jan 2, 2013 (gmt 0)

Two options - the visible header across the top of your web page OR the invisible header that you can view in the page source code.

If it's the first one - just mouse over the links and see where they're sending the visitor to.

If it's the second one - look for calls to resources like style sheets, javascript files, jQuery, etc...