function makeName(layerID)
	{
		if (navigator.appName=="Netscape"){lname = eval("document." + layerID)}
		else{lname = eval("document.all." + layerID + ".style")}
		return lname
	}

function showLayer(layername)
	{
		mL = makeName(layername);
		mL.visibility="visible";
	}

function hideLayer(layername)
	{
		mL = makeName(layername);
		mL.visibility="hidden";
	}

function activateMenu(menuNumber)
	{
		showLayer('menuoff');
		for (i=1; i<=5; i=i+1)
	   		{
				hideLayer("menu" + i);
	   		}
		showLayer("menu" + menuNumber);
	}

function closeMenus()
	{
		hideLayer('menuoff');
		for (i=1; i<=5; i=i+1)
	   		{
				hideLayer("menu" + i);
	   		}
	}

function navgo(theURL)
	{
		document.location.href = theURL;
	}