Hi and thank you for the attention. It might be very easy I just can’t find the answer anywhere. (flash 8)
Usually I have no problem with buttons, but this one should direct you out of the MC, because they are on different levels (if it makes any sense).
So, my main MC is ‘site’, inside there is the ‘content’ mc (where I load the pages) and inside the ‘content’ there is a ‘menubar’ mc (wich contains the buttons). Now as my buttons are inside the ‘menubar’ mc, what code should I use to go out of the mc and control pages appear in the content?
For some reason I can’t get out the ‘menubar’ of that ‘content’ mc, though life would be much easier. Which means the code should come from inside the menubar mc, can’t make it from the ‘content’ mc. 
Thanks a lot for your help!
