Progress bar script Load level :( [HELP]

Hello sorry for my french :/ I followed a tutorial to create a progress bar are not my script to load a NIVAUX :/ I is not what to do or meter :/ I need your help called me the code to load the meter :/ level of games thank you youtube video:​

http://www.youtube.com/watch?v=-tmjnoe-dqI

Code (csharp):

1. var progress : float = 0;
2. var pos : Vector2 = new Vector2(20,40);
3. var size : Vector2 = new Vector2(60,20);
4. var progressBarEmpty : Texture2D;
5. var progressBarFull : Texture2D;
6.  
7.  function OnGUI()
8. {
9.     GUI.DrawTexture(Rect(pos.x, pos.y, size.x, size.y), progressBarEmpty);
10.     GUI.DrawTexture(Rect(pos.x, pos.y, size.x * Mathf.Clamp01(progress), size.y), progressBarFull);
11. }
12.  
13. function Update()
14. {
15.  
16.     progress = Time.time * 0.05;
17.        
18.    
19. }
20.  

HELP +1


source script : http://answers.unity3d.com/questions/7846/how-do-i-make-a-progress-bar.html