<!-- funzione scambia classe menu --> 

/*config*/
menuClassName = "menuNavigazione";
/* Script */
function closeSub(menu) {
	for (var i = 0; i < menu.childNodes.length; i++)
		if (menu.childNodes[i].nodeName.toLowerCase()=="li") {
			li = menu.childNodes[i];
			li.onmouseover = li.onactivate = li.onfocus = function() { if(this.subMenu) 
					this.subMenu.className = this.subMenu.className.replace(/subMenu-off/g, "subMenu-on") };
			li.onmouseout = li.ondeactivate = li.onblur = function() { if(this.subMenu) closeSub(this.subMenu) };
			for (j=0; j<li.childNodes.length; j++)
				if (li.childNodes[j].nodeName.toLowerCase()=="ul" || li.childNodes[j].nodeName.toLowerCase()=="ol") 
				closeSub(li.subMenu = li.childNodes[j]);
		}
	menu.className = menu.className.replace(/\s?subMenu-on/g,"")+" subMenu-off";
	}
	
/* On-Load */
window.onload = function(e) {
	if(tags_ = document.getElementsByTagName('ul'))
		for(i=0; i<tags_.length; i++)
			if (tags_[i].className==menuClassName) closeSub(tags_[i]);
	if(tags_ = document.getElementsByTagName('ol'))
		for(i=0; i<tags_.length; i++)
			if (tags_[i].className==menuClassName) closeSub(tags_[i]);
}
/* menu orizzontale */
var menu=function(){
	var t=15,z=50,s=6,a;
	function dd(n){this.n=n; this.h=[]; this.c=[]}
	dd.prototype.init=function(p,c){
		a=c; var w=document.getElementById(p), s=w.getElementsByTagName('ul'), l=s.length, i=0;
		for(i;i<l;i++){
			var h=s[i].parentNode; this.h[i]=h; this.c[i]=s[i];
			h.onmouseover=new Function(this.n+'.st('+i+',true)');
			h.onmouseout=new Function(this.n+'.st('+i+')');
		}
	}
	dd.prototype.st=function(x,f){
		var c=this.c[x], h=this.h[x], p=h.getElementsByTagName('a')[0];
		clearInterval(c.t); c.style.overflow='hidden';
		if(f){
			p.className+=' '+a;
			if(!c.mh){c.style.display='block'; c.style.height=''; c.mh=c.offsetHeight; c.style.height=0}
			if(c.mh==c.offsetHeight){c.style.overflow='visible'}
			else{c.style.zIndex=z; z++; c.t=setInterval(function(){sl(c,1)},t)}
		}else{p.className=p.className.replace(a,''); c.t=setInterval(function(){sl(c,-1)},t)}
	}
	function sl(c,f){
		var h=c.offsetHeight;
		if((h<=0&&f!=1)||(h>=c.mh&&f==1)){
			if(f==1){c.style.filter=''; c.style.opacity=1; c.style.overflow='visible'}
			clearInterval(c.t); return
		}
		var d=(f==1)?Math.ceil((c.mh-h)/s):Math.ceil(h/s), o=h/c.mh;
		c.style.opacity=o; c.style.filter='alpha(opacity='+(o*100)+')';
		c.style.height=h+(d*f)+'px'
	}
	return{dd:dd}
}();