Building a Message Board

Hi There

I'm trying to write a script to build an online message box and its proving difficult. So far I have a text field for writing the messages, a 'submit' button which once pressed creates a GUI.Label below with the message text on it.

There are a couple of problems though and though i've searched around for answers none of the solutions have worked so far.

Here's where i'm at:

 Code:

var stringToEdit : String = "What's The News?"; var customSkin : GUISkin; var newMessage = false;

function OnGUI () { GUI.skin = customSkin;

 stringToEdit = GUI.TextField (Rect (220, 130, 500, 60), stringToEdit, 25);
 
 if (GUI.RepeatButton(Rect(730,130,60,30),"Submit"))
 newMessage = true;
 
 if (newMessage){ 
 GUI.Label (Rect (220, 340,500,60), "New Message: " + stringToEdit);
 }

}

This is the best I can do so far but because if the functions I'm after this code isn't really near what i'm after. The first problem is that once I click the submit button and a GUI.Label appears below the text on it continues to change with the text field making it impossible to write a new message.

The other problem is creating multiple messages, It may work with one but is there a way to create an new GUI every time the submit button is pressed?

Could really do with a hand, I hope you guys can give me a leg up.