Whats Wrong with my code?

function Start ()
{
function OnGUI();
{
if(GUI.Button(Rect(10,10,50,50),“dlksfja”))
{

		Application.LoadLevel(Application.loadedLevel);
		
	}
	
}

}

You wrote one method inside another. You cann’t do like this.

function Start ()

{

}

function OnGUI()

{

if(GUI.Button(Rect(10,10,50,50),"dlksfja"))

{

  Application.LoadLevel(Application.loadedLevel);

}

}