function apriSoluzione(num){
	var myTable = document.getElementById("sol_"+num);
	var myTables = document.getElementsByTagName("TABLE");

	for(var i=0; i<myTables.length; i++){
		if(myTables[i].id.substring(0,4) == 'sol_'){
			myTables[i].className = "hidden";
		}
	}
	myTable.className = "storici";
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function toggleLayer(whichLayer, button)
{
if (document.getElementById)
{
// this is the way the standards work
var style2 = document.getElementById(whichLayer).style;
var value2 = document.getElementById(button);
style2.display = style2.display? "":"block";
if(value2.value == '  > ') value2.value = '  < ';
else value2.value = '  > ';
}
else if (document.all)
{
// this is the way old msie versions work
var style2 = document.all[whichLayer].style;
style2.display = style2.display? "":"block";
}
else if (document.layers)
{
// this is the way nn4 works
var style2 = document.layers[whichLayer].style;
style2.display = style2.display? "":"block";
}
}

/*
function lingue(){
	var stato= document.getElementById('lingue').style.display;
	if (stato=='none'){
	document.getElementById('lingue').style.display='block'
	} else {
	document.getElementById('lingue').style.display='none'
	}
}
*/

function gestioneDIVLogin(azione, lingue){
	if(azione=='apri'){
		document.getElementById('login').style.display='block';
		document.getElementById('butt_login').style.display='none';
		if(lingue!='nolingue'){
			document.getElementById('sceltaLingue').style.display='none';
		}
	} else if(azione=='chiudi'){
		document.getElementById('login').style.display='none';
		document.getElementById('butt_login').style.display='block';
		if(lingue!='nolingue'){
			document.getElementById('sceltaLingue').style.display='block';
		}
	}
}


function cambiaMusica(lingua) {
	obj = document.getElementById("testoMusica");
	if(lingua==1){
		testoOn = "musica on";
		testoOff = "musica off";
	} else {
		testoOn = "music on";
		testoOff = "music off";
	}
	
	if(obj.className=="disattiva"){
		//disattivo
		parent.musica.location.href = "about:blank";
		obj.className="attiva";
		
		obj.innerHTML = testoOn
	} else {
		//Attivo
		parent.musica.location.href = "musica.htm";
		obj.className="disattiva";
		obj.innerHTML = testoOff
	}
	
	return false;
}


function scriviLinkMusica(lingua){
	obj = document.getElementById("musica");
	if(lingua==1){
		testoOn = "musica on";
		testoOff = "musica off";
	} else {
		testoOn = "music on";
		testoOff = "music off";
	}
	var s = '<a href="#" onclick="cambiaMusica('+lingua+')" id="testoMusica" class="disattiva">'+testoOff+'</a>';
	var n = '<a href="#" onclick="cambiaMusica('+lingua+')" id="testoMusica" class="attiva">'+testoOn+'</a>';

	if(parent.musica.location.href == "about:blank"){
		obj.innerHTML = n;
	}
	else{
		obj.innerHTML = s;
	}
	
	return false;
}