It's really late so I'm sorry I don't have time to look at this right now. But right off the bat, I can see one problem...

If you want it to be XHTML compatible, you'll need to change your div style to this:

#linkshead
{...

rather than dev.linkshead

then you'll want to throw an id into your div tag as follows:

<div id="linkshead">...</div>

rather than calling linkshead in the class element. Part of the XHTML specification is that all divs have to have an ID.

aaaaaaand to bed. I'll fiddle with it more in the morning.