var currentObject = "";

function doNothing()
	{
	// this does nothing.
	}

function show(object)
	{
	var objects = new Array("utdMenu","gradMenu","taMenu","facMenu","aboutMenu", "catalogMenu", "newsletterMenu", "issuesMenu");
	if (document.all && document.all[object])
		{
		document.all[object].style.display = 'block';
		for(i=0;i<objects.length;i++)
			if (objects[i] != object)
				document.all[objects[i]].style.display = 'none';
		}
	else if (document.layers && document.layers[object] != null)
		{
		document.layers[object].display = 'block';
		for(i=0;i<objects.length;i++)
			if (objects[i] != object)
				document.layers[objects[i]].display = 'none';
		}
	else if (document.getElementById && (document.getElementById(object) !=null))
		{
		document.getElementById(object).style.display = 'block';
		for(i=0;i<objects.length;i++)
			if (objects[i] != object)
				document.getElementById(objects[i]).style.display = 'none';
		}
	if (object == currentObject)
		{
		if (document.layers && document.layers[object] != null)
			document.layers[object].display = 'none';
		else if (document.all && document.all[object])
			document.all[object].style.display = 'none';
		else if (document.getElementById && (document.getElementById(object) !=null))
			 document.getElementById(object).style.display = 'none';
		currentObject = "";
		}
	else
		currentObject = object;
	}



function hide(object)
	{
	if (document.layers && document.layers[object] != null)
		document.layers[object].display = 'none';
	else if (document.all && document.all[object])
		document.all[object].style.display = 'none';
	else if (document.getElementById && (document.getElementById(object) !=null))
		 document.getElementById(object).style.display = 'none';
	 }