PlayerPrefs for saving strings

I'm trying out the PlayerPrefs Class with my code for a bulletin board now and I must be doing something wrong. I'm trying to load previously saved strings with OnLevelWasLoaded and then save new strings when the submit button is pressed. I can't seem to get it to work. I'd really appreciate it if someone could take a look at this.

   var stringToEdit: String = "What's The News?";
 var customSkin: GUISkin;
 var maxMessage = 10;
 var messagesTyped: String[];
 var messageSpacing: float = 10;
 var maxChar : int = 30;
 var scrollPosition : Vector2 = Vector2.zero;
 var messageAlert : String = "New Message From ";
 var nameField: String = "Name";
 private var msgCounter: int;
 
 function Start()
 {
     maxMessage--;
     messagesTyped = new String[maxMessage];
    
 }
 
 function OnLevelWasLoaded(){
     //get input
     loadLevel();
 }
 
 function loadLevel(){
     if(PlayerPrefs.HasKey(nameField+ stringToEdit)){
     Application.LoadLevel(PlayerPrefs.GetString(nameField, stringToEdit));
     }   
 }
 
 function OnGUI()
 {
     GUI.skin = customSkin;    
     
     stringToEdit = GUI.TextField(Rect(270, 100, 450, 80), stringToEdit, maxChar);
     nameField = GUI.TextField(Rect(80, 100, 180, 30), nameField, maxChar);
     if (GUI.Button(Rect(730, 100, 60, 30), "Submit"))
     {
         SubmitMsg( messageAlert + nameField + ":  " + stringToEdit);
         saveMessage();
         
     }
     var x: float = 270;
     var y: float = 180;
     for (var i: int;
     i < messagesTyped.length;
     i++)
     {
         y += messageSpacing;
         //print("Here");
         GUI.Label(Rect(x, y, 500, 60), messagesTyped[i]);
     }
     }
 function SubmitMsg(submittedMsg: String)
 {
     if (msgCounter == maxMessage)
     {
         msgCounter = 0;
     }
     messagesTyped[msgCounter] = submittedMsg;
     print(messagesTyped[0]);
     msgCounter++;
 }
 
 function saveMessage(){
 PlayerPrefs.SetString(nameField, stringToEdit);
 print("saved");
 }