Thanks, i really appreciate the help.
I'm starting to see clear now, it's actually a funny nut to crack!
I think im really close, and with your help i altered the code like this.
If dosen't give me the wanted result, it gives me a blank page.
The PHP code in the header should store the exact url in the variable. And the statement says: If the url is exactly like this then use 'boldnav' class, else use 'boldnav' class.
In other words, if the statement was true the line would be like this:
and if false, it would be:
But me getting a blank page is evidence i wrote something wrong, i would assume i may have put the first part of the code in a wrong place, but it dosen't look like it makes a difference whereever i put it.