Help with code

[Nikola Pejovski]

In Unity, I have tried many buttons but I can't connect them with the (Java)Script.

So I made 2 gui buttons: one for jump which was easy because I had an if statement and if it's true then jump.

But I have problems with the crouch button. Bellow is my script but I can't figure out how to put the crouch code in > function OnGUI()

This is my script:
#pragma strict private var tr: Transform; private var dist: float; // distance to ground function Start(){ tr = transform; var ch:CharacterController = GetComponent(CharacterController); dist = ch.height/2; // calculate distance to ground } function Update() { var vScale = 1.0; if (Input.GetKey("s")){ vScale = 0.5; } var ultScale = tr.localScale.y; tr.localScale.y = Mathf.Lerp(tr.localScale.y, vScale, 5*Time.deltaTime); tr.position.y += dist * (tr.localScale.y-ultScale); } function OnGUI () { if(GUI.Button(new Rect(15, 330, 200, 100), "Shrink")) { } }