function toggleFold(obj, tfold)
{
    var o = document.getElementById('lmid'+tfold);
    if(o)
    {
        if(o.style.display != 'block') {
            o.style.display = 'block';
            obj.className = 'fin';
        } else {
            o.style.display = 'none';
            obj.className = '';
        }
    }
}