function toggle(l, i)
{
	o = MM_findObj(l);
	o.style.display = o.style.display == "none" ? "block" : "none";
	
	if(document.images)
	{
		document.images[i].src = o.style.display == "block" ? "img/sitemap/minus.gif" : "img/sitemap/plus.gif";
	}
}