//javascript per il menu espandibile con massimo un livello aperto
var prev=null;

window.onload=function(){
if(document.getElementsByTagName && document.getElementById){
    document.getElementById("nav").className="jsenable";
    BuildList();
    }
}

function AlternOnLoad(){
if(document.getElementsByTagName && document.getElementById){
    document.getElementById("nav").className="jsenable";
    BuildList();
    }
}

function BuildList(){
var hs=document.getElementById("nav").getElementsByTagName("h3");
for(var i=0;i<hs.length;i++){
	if(hs[i].parentNode.className == "hide")
		hs[i].parentNode.className="hidereal";
    hs[i].onclick=function(){
        var hs=document.getElementById("divMenuUmbria").getElementsByTagName("h3");
		for(var i=0;i<hs.length;i++)
		{
			hs[i].parentNode.className="hidereal";
		}
		this.parentNode.className="show";
        }
    }
}