var prev= null;
var prev1= null;

/*
function inizio(){

var uls = document.getElementsByTagName("ul");
	for (i=0;i<uls.length;i++) {
		if(uls[i].className=="submenu")uls[i].style.display = "none";
	}


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

window.onload=function(){

var uls = document.getElementsByTagName("ul");
	for (i=0;i<uls.length;i++) {
		if(uls[i].className=="submenu")uls[i].style.display = "none";
	}


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++){
    hs[i].onclick=function(){
        if(this.parentNode.className=="hide"){
            this.parentNode.className="show";
            if(prev && prev!=this.parentNode) prev.className="hide";
             if(prev1 && prev1!=this.parentNode) prev1.className="hide1";
            prev=this.parentNode;
           	}
        else this.parentNode.className="hide";
        }
    }
var hs1=document.getElementById("nav").getElementsByTagName("h4");
for(var i=0;i<hs1.length;i++){
    hs1[i].onclick=function(){
        if(this.parentNode.className=="hide1"){
            this.parentNode.className="show1";
            if(prev1 && prev1!=this.parentNode) prev1.className="hide1";
            prev1=this.parentNode;
            }
        else this.parentNode.className="hide1";
        }
    }

}