MonoBehaviour.OnLevelWasLoaded

function OnLevelWasLoaded (level : int) : void

Description

This function is called after a new level was loaded.

/level/ is the index of the level that was loaded. Use the menu item File->Build Settings... to see what scene the index refers to. See Also: Application.LoadLevel.

JavaScript
    // Prints "Woohoo" when level 13 is loaded.
function OnLevelWasLoaded (level : int) {
if (level == 13) {
print ("Woohoo");
}
}

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
void OnLevelWasLoaded(int level) {
if (level == 13)
print("Woohoo");

}
}

import UnityEngine
import System.Collections

class example(MonoBehaviour):

def OnLevelWasLoaded(level as int):
if level == 13:
print('Woohoo')

OnLevelWasLoaded can be a co-routine, simply use the yield statement in the function.