I need to disable/enable the default First Person Controller on my character.

This is my script so far:
#pragma strict
public var TabState : int = 1;
function Update ()
{
if(Input.GetKeyDown (KeyCode.Tab))
{
switch (TabState)
{
case 1:
//Enable
TabState = 2;
break;
case 2:
//Disable
TabState = 1;
break;
}
}
}
Any Help would be apreciated!