var isQuitButton = false;

function OnMouseEnter()
{
    renderer.material.color = Color.green;
}

function OnMouseExit()
{
    renderer.material.color = Color.white;
}

function On Mouse Up()
{
    if ( isQuitButton )
    {
    Application.Quit();
    }
    else
    {
    Application.LoadLevel(1);
    }
}