function toggleadminbuttons(usage)
{
    if (usage == 'off')
    {
        document.getElementById('zencartlogoff2').style.display = 'none';
        document.getElementById('zencartlogoff3').style.display = 'none';
        document.getElementById('zencartlogoff4').style.display = 'none';
    }
    if (usage == 'on')
    {
        document.getElementById('zencartlogoff2').style.display = 'table-cell';
        document.getElementById('zencartlogoff3').style.display = 'table-cell';
        document.getElementById('zencartlogoff4').style.display = 'table-cell';
    }
}