Top Level Page Menu Highlights All Sub Items

Hi guys, I hope I can explain this but it might need a look at my site ibooknewzealand.com .

I have set the Home page to be "New Zealand" the static page. This static page is a parent of several child pages. The problem is that all these child pages show in the dark hover colour, when the parent (home page) is chosen, which looks ugly when you first land.

I guess the way around it is to have a home page with no child pages, but it would be interesting if anyone had any other ideas.
Regards, Joan