Could somebody help me with my main menu script please

this is my script i am making a menu at the beginning of my game with two button's play game, and quit game. it highlights when i go over it and when i take my cursor off of it the highlight goes away thats not my problem. i set a sound to when you click on the button but it doesnt play. the script doesnt work either i keep getting errors. please help?! thank you in advance

// set this to your sound in the inspector
var crashSound : AudioClip;
var isQuitButton : false;

function OnCollisionEnter (collision : Collision)

{
// next line requires an AudioSource component on this gameobject
audio.PlayOneShot(crashSound); }

function OnMouseEnter() 
{ 
//change the color of the text
 renderer.material.color = Color.green; 
}

function OnMouseExit() 
{ 
//change the color of the text
renderer.material.color = Color.white; 
}

functiom OnMouseUp() 
{ 
//are we dealing with a quit button?
if(isQuitButton) 
} 
else 
{ 
//load level Application.LoadLevel(1); 
} 
}

Could you add this to your script?

function OnMouseDown ()

{
 // next line requires an AudioSource component on this gameobject
 audio.PlayOneShot(crashSound); 
}

You have unbalanced scroll braces near the end.

    functiom OnMouseUp() 
{ 
//are we dealing with a quit button?
if(isQuitButton) 
} 

That is the function from the point of view of the compiler. Also, having an empty statement before an else statement is somewhat silly. It could just be

if(!isQuitButton)
{
//load level
}