Getting rid of the scoreboard entirely in a gamemode?

[HellFire2345]

In my gamemode the scores for each team are at the top of the screen at all times. How do I disable the tab-scoreboard completely? It's extremely simple but I can't seem to find anything on it.

function GM:ScoreboardShow()
return false
end

function GM:ScoreboardHide()
return false
end

function GM:HUDDrawScoreBoard()
return false
end

Does not work..

[Doubleedge]

I believe it's something along the lines of this:

[lua]
function GM:ScoreboardShow()
--Initialize your scoreboard code here.
return true --This hides the default scoreboard.
end

function ScoreboardHide()
--Hide your scoreboard here with your code
end
[/lua]

That's how I do mine and it works; my scoreboard shows and the default one is not shown with it.

This is how I do mine:
[lua]
function ScoreboardShow()
if ( !IsValid(scoreboard) ) then
scoreboard = vgui.CreateFromTable(PScoreboard)
end

if ( IsValid(scoreboard) ) then
scoreboard:Show()
scoreboard:MakePopup(true)
scoreboard:SetKeyboardInputEnabled( false )
end
return true
end
hook.Add("ScoreboardShow", "ScoreboardShow", ScoreboardShow)

function ScoreboardHide()
if ( IsValid(scoreboard) ) then
scoreboard:Hide()
end
end
hook.Add("ScoreboardHide", "ScoreboardHide", ScoreboardHide)
[/lua]