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';
}

function show2(obj) {
	//turn off all of the child nodes
	c = document.getElementById('pNode').childNodes;
	i = c.length;
	while (i--) {
		c[i].style.visibility='hidden';
		c[i].style.display='none';
	}
	document.getElementById(obj).style.visibility='visible';
	document.getElementById(obj).style.display='block';	
}