//javascript per il menu espandibile con massimo un livello aperto
var prev="null";
window.onload=function(){
	var ausilio = String(this.location);
var tasto = ausilio.charAt(ausilio.lastIndexOf("?io")+4);
if(document.getElementsByTagName && document.getElementById){
    document.getElementById("nav").className="jsenable";

    BuildList1(tasto);
	 
	// BuildList()
    }
}

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

function BuildList1(nume){
var hs=document.getElementById("nav").getElementsByTagName("h3");
//for(var i=0;i<hs.length;i++){
  //  hs[nume].window.onload=function(){
	  //if (hs[i]=nume){
        if(hs[nume].parentNode.className!="show"){
            hs[nume].parentNode.className="show";
            if(prev && prev!=hs[nume].parentNode) prev.className="hide";
            prev=hs[nume].parentNode;
            }
        //else hs[i].parentNode.className="hide";
        //}
 //}
	   BuildList()
} //  //


function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}