function show(object) {
if (document.getElementById && document.getElementById(object) != null)
node = document.getElementById(object).style.visibility='visible';
else if (document.layers && document.layers[object] != null)
document.layers[object].visibility = 'visible';
//else if (document.all)
//document.all[object].style.visibility = 'visible';
}

function hide(object) {
if (document.getElementById && document.getElementById(object) != null)
node = document.getElementById(object).style.visibility='hidden';
else if (document.layers && document.layers[object] != null)
document.layers[object].visibility = 'hidden';
//else if (document.all)
//document.all[object].style.visibility = 'hidden';
}