// Common JavaScript Library

function PreLoadImage(url, width, height)
{
    img = new Image(width, height);
    img.src = url;
}

function SelectMainMenuItem(id)
{
    document.getElementById('MainMenuItem' + id).className += ' MMSelected';
}

function SelectSubMenuItem(id)
{
    document.getElementById('SubMenuItem' + id).className += ' SMSelected';
}