Own modifications of the menu etc Options

[Annoyer13]

Hello,
well, I wanna to edit two things.
First, can you help me how to make a something like... hmm own modifications of menu, like in the play online -> buttons redirects to server or www site of clan. Some W:ET clans make smth like that when I join them, like SAVO or F|A. How to do it? I think it's useful for users who likes a server.
Second, I think easier thing, how to add a additional button to Esc menu in the game? I mean button with redirect to clan website or to make changes in user cfg, like seta rate, cl_maxpackets, cl_download etc.
Thanks in advance.
Regards,