GUI Main Menu Options?

I have a 3D Text in my level with this script attached to it:

private var video = false;
var soundhover : AudioClip;
private var showGUI : boolean;


function Start ()
{

showGUI = false;
video = false;

}

function OnMouseEnter()
{

audio.PlayOneShot(soundhover);

}


function OnMouseUp()
{

    showGUI = true;

}

function OnGUI()
{

    if(showGUI)
    {

    (GUI.Button(Rect(Screen.width/2 - 50, Screen.height/2 + 30, 100, 30), "Video Settings"))
    (GUI.Button(Rect(Screen.width/2 - 50, Screen.height/2 + 90, 100, 30), "Back"));

    video = true;
    }
}

    if(GUI.Button(Rect(Screen.width/2 - 50, Screen.height/2 + 90, 100, 30), "Back"))
    {
    video = false;
}

if(video)
{
var qualities = QualitySettings.names;

GUILayout.BeginVertical ();

for (var i = 0; i < qualities.Length; i++){


if (GUI.Button(Rect(Screen.width/2 - 50,  Screen.height/2 - 120 + i * 30, 100, 30), qualities[i])){


QualitySettings.SetQualityLevel (i, true);
}
}

GUILayout.EndVertical ();


if (GUI.Button(Rect(Screen.width/2 - 50, Screen.height/2 + 90, 100, 30), "Back")){

showGUI = false;
video = false;
}
}

I’m trying to make it to where if you hover over the “Options” 3D text’s collider, it makes a sound. When you click on it, it displays on screen GUI. I’m getting this error:

you are missing a “;” at line 35