How to disable a shader in a material

I am using Toon-BasicOutline on a GameObject and I’d like to be able to disable just the outline effect. anyone can help me?

Drop this script on your object, run the game and press spacebar to see the outline appear/disappear:

private var shaderNoOutline = Shader.Find( "Toon/Basic" );
private var shaderOutline = Shader.Find( "Toon/Basic Outline" );
function Update() {
    if( Input.GetButtonDown("Jump") ) {
    	if( renderer.material.shader == shaderNoOutline )
    		renderer.material.shader = shaderOutline;
    		renderer.material.shader = shaderNoOutline;