/* per il menu */
function openMenu (link)
{
	if(link.parentNode)
		link = link.parentNode;
	var elements = link.getElementsByTagName("ul");
	if(elements && elements.length > 0)
	{
		if(elements[0].style)
			elements[0].style.display = (elements[0].style.display == "block") ? "none" : "block";
	}
	return false;
}