function DisplayMembers(criteria) {

    switch (criteria) {
        case 'newestMembers':
            document.getElementById('newestMembers').style.display = 'block';
            document.getElementById('popularMembers').style.display = 'none';
            document.getElementById('activeMembers').style.display = 'none';
            break;
        case 'popularMembers':
            document.getElementById('newestMembers').style.display = 'none';
            document.getElementById('popularMembers').style.display = 'block';
            document.getElementById('activeMembers').style.display = 'none';
            break;
        case 'activeMembers':
            document.getElementById('newestMembers').style.display = 'none';
            document.getElementById('popularMembers').style.display = 'none';
            document.getElementById('activeMembers').style.display = 'block';
            break;
    }    
};