Link logo to startpage

Hello!

When I changed the logo image on this site: http://www.zilloman.com the link that worked perfekt before the change dissapeard.

I don’t understand why, any suggestion on what it is thats have happend?

So, the thing I want help with is that if you click on the logo you will come to the startpage.

Like this pictuire: http://www.westerback.org/help.JPG

Thanks!