Current scene execution stops before next scene is fully loaded!

Hello,

I have a separate scene named "Loading" , which I load before any "big" scene is loaded. Of course scene "Loading" is light and almost empty which loads fast. I want to display cool staff inside this scene and since every time I want the same loading animation to appear, I preferred to have a separate scene.

Here's the script that manages the "Loading" scene.

 public var backgroundGUI:GUITexture;
 public static var levelToLoad:String;

 function Start () 
 {
      backgroundGUI.pixelInset.width = Screen.width;
      backgroundGUI.pixelInset.height = Screen.height;
 }
 
 function Update ()
 {
     if(Application.GetStreamProgressForLevel(levelToLoad) == 1)
     {    
         Application.LoadLevel(levelToLoad);        
     }
 }

And here's the script that Loads this scene:

 // of course this if conditional is inside GUI , checking for touch , etc ...
 if(button1_guiTexture.HitTest(Input.GetTouch(0).position , mainCamera))
 {
     levelButtonSound.Play();                                
     LoadLevel("Jungle");                 
 }
 
 function LoadLevel(levelToLoad:String)
 {    
     Loading_Manager.levelToLoad = levelToLoad;
     Application.LoadLevel("Loading");
 }

As you see clearly in the code, I change the level name and load the "Loading" scene, which in turn plays a Background and Loads the appropriate Scene.

What I can't do is applying any animation or percentage display or anything once Application.LoadLevel(levelToLoad) is called.

I need a way to keep the Update function running untill the next level fully loads. Or any other different method that can make this work.

Thank you for your time :)