Restart Code in C# & JS

//	In C#

using UnityEngine;
using System.Collections;
using System.Collections.Generic;


public class RestartNow : MonoBehaviour {

	void OnGUI () {
		if (GUILayout.Button ("Restart")) {
			Application.LoadLevel(Application.loadedLevel);
		}

		if (GUI.Button (new Rect (10,30,75,20), "Restart")) {
			Application.LoadLevel(Application.loadedLevel);
		}
	}


	void Update () {
		if (Input.GetKey ("r")) {
			Application.LoadLevel(Application.loadedLevel);
		}

		//Requires this button to be set in the Input Manager
		//http://unity3d.com/support/documentation/Manual/Input.html
		//http://unity3d.com/support/documentation/Components/class-InputManager.html

		if (Input.GetButtonDown ("Restart")) {
			Application.LoadLevel(Application.loadedLevel);
		}
	}
}


//	Or in UnityScript.js:

function OnGUI () {
	if (GUILayout.Button ("Restart")) {
		Application.LoadLevel(Application.loadedLevel);
	}
	if (GUI.Button (new Rect (10,30,75,20), "Restart")) {
		Application.LoadLevel(Application.loadedLevel);
	}
}

function Update () {
	if (Input.GetKey ("r")) {
		Application.LoadLevel(Application.loadedLevel);
	}

	//	Requires this button to be set in the Input Manager
	//	http://unity3d.com/support/documentation/Manual/Input.html
	//	http://unity3d.com/support/documentation/Components/class-InputManager.html

	if (Input.GetButtonDown ("Restart")) {
		Application.LoadLevel(Application.loadedLevel);
	}
}