I'm designing a web site with a column of navigation buttons on the left. On the right is the content. Clicking a button loads the particular content and a title header on the top. Say the column of buttons is, for example, About, Services, Contact, etc...
If someone clicks, for example, the Services button, I load the services content in the content area, and change the header text to "Services."
The question I have is should the column of buttons now omit the Services button, or should the Services button remain in the column but be disabled (graphically and functionally)?
The first way, the menu is simpler and you wouldn't have a button that loads the content that is already loaded.
The second way gives the user more indication "where" he is, even though the header does that too.
Is there a consensus?