function menu(a,cat){
  	var mye=document.getElementById(a);
  	if(!mye)return true;
  	if(mye.style.display=="none"){
	    mye.style.display="block";
  	}else {
	    mye.style.display="none";
  	}
	for (i = 0; i < cat.length; i++) {
		var name = cat[i];
		if(name!=a){
			var idcat=document.getElementById(name);
	  		if(!idcat)return true;
	  		if(idcat.style.display=="block"){
		    	idcat.style.display="none";
	  		}
		}
	}
  	return true;
}

function fuoco(ide,arrid){
  	var myel=document.getElementById(ide);
  	if(!myel)return true;
  	myel.style.background='url(/immagini/fe/ML_tasto.gif) 0 -24px'

  	for (i = 0; i < arrid.length; i++) {
		var name = arrid[i];
		if(name!=ide){
			var idart=document.getElementById(name);
	  		if(!idart)return true;
	    	idart.style.background='url(/immagini/fe/ML_tasto.gif) 0 0px'
		}
	}
  	return true;
}