Customizing Home Button in Navbar

[ErnestA]

Hi, I'm really hoping to get a bit of help.

I'd like to modify the link for the Home button on the vBulletin Navbar.

But I would like to set the URL to a different value IF certain custom user profile fields I've created are populated and match specific values.

So here would be the logic:

1) Check the custom user profile fields I created and see if they match specific values
2) If they don't match, leave the Home button as the default CMS home URL.
3) If there is a match, set the Home button to a different URL.

Could you give me some pointers? I've never done vB conditionals before so a quick example of referencing a user profile field would help.

Thanks,

Ernest Aleixandre