function getItem(id)
    {
        var itm = false;
        if(document.getElementById)
            itm = document.getElementById(id);
        else if(document.all)
            itm = document.all[id];
        else if(document.layers)
            itm = document.layers[id];

        return itm;
    }

    function toggleItem(id)
    {
        itm = getItem(id);

        if(!itm)
            return false;

        if(itm.style.display == 'none')
            itm.style.display = '';
        else
            itm.style.display = 'none';

        return false;
    }