function MM_preloadImages() { 
  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_swapImgRestore() { 
  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_findObj(n, d) { 
  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); return x;
}

function MM_swapImage() { 
  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];}
}

MM_preloadImages('../it/immagini/menu1_on.gif','../en/immagini/menu1_on.gif','../it/immagini/menu2_on.gif','../en/immagini/menu1_on.gif','../it/immagini/menu3_on.gif','../en/immagini/menu3_on.gif','../it/immagini/menu4_on.gif','../en/immagini/menu4_on.gif');

function nascondi() { 
  var i, visStr, args, theObj;
  args = nascondi.arguments;
  for (i=0; i<(args.length-2); i+=3) { 
    visStr   = args[i+2];
    if (navigator.appName == 'Netscape' && document.layers != null) {
      theObj = eval(args[i]);
      if (theObj) theObj.visibility = visStr;
    } else if (document.all != null) {
      if (visStr == 'show') visStr = 'visible'; 
      if (visStr == 'hide') visStr = 'hidden';
      theObj = eval(args[i+1]);
      if (theObj) theObj.style.visibility = visStr;
	} 
  }
}

var N6=navigator.userAgent.toLowerCase().indexOf("gecko")!=-1

function nascondiTutto(){
 	if (N6){
		for (i = 1; i < 2; i++){
		eval("document.getElementById('m"+i+"').style.visibility = \"hidden\"");
		}
 	}
	else if (navigator.appName == 'Netscape' && document.layers != null) 
	{
		for (i=0; i<document.layers.length; i++) 
		{
			whichEl = document.layers[i];
			if (whichEl.id != 'placeholder' && whichEl.id != 'scroller0_baseLayer' && whichEl.id != 'scroller0_scrollLayer' && whichEl.id != 'scroller0_itemLayers0' && whichEl.id != 'scroller0_itemLayers1' && whichEl.id != 'scroller0_itemLayers2'){
				nascondi('document.layers[\'' + whichEl.id + '\']','document.all[\'' + whichEl.id + '\']','hide');
			}
		}
	} else {
		divColl=document.all.tags("DIV");
		for (i=0; i<divColl.length; i++) {
			if (divColl(i).id != 'placeholder' && divColl(i).id != 'scroller0_baseLayer' && divColl(i).id != 'scroller0_scrollLayer' && divColl(i).id != 'scroller0_itemLayers0' && divColl(i).id != 'scroller0_itemLayers1' && divColl(i).id != 'scroller0_itemLayers2'){
				nascondi('document.layers[\'' + divColl(i).id + '\']','document.all[\'' + divColl(i).id + '\']','hide');
			}
		}
	}
}


function MostraAttivo(menu){
	if (N6){
		eval("document.getElementById('"+menu+"').style.visibility = \"visible\"");
 	}else{	
		nascondi('document.layers[\'' + menu + '\']','document.all[\'' + menu + '\']','show');
	}
}