function toggle(obj) {
    var el = document.getElementById(obj);
    if ( el.style.display != 'none' ) {
        el.style.display = 'none';
    }
    else {
        el.style.display = '';
    }
}

function showitem(XXX){
	document.getElementById(XXX).style.display = '';
}

function hideitem(XXX){
	document.getElementById(XXX).style.display = 'none';
}