function apri_chiudi_layer(nomelayer) {
	
	if (document.getElementById(nomelayer).style.display == "none") {
		document.getElementById(nomelayer).style.display = "block";
	} else {
		document.getElementById(nomelayer).style.display = "none";
	}
	
}

// serve se contiene campi che sono hidden
function espandi(div){	
	document.getElementById(div).style.height='auto';		
	}
	
function nascondi(div){
		document.getElementById(div).style.height='0px';
	}


function placeFocus() {
document.contatti.nome.focus();
}

function checkFields() {

	if (document.contatti.nome.value == "")				{alert("Il campo NOME è obbligatorio!");			document.contatti.nome.focus();return false;};
	if (document.contatti.email.value=="")				{document.contatti.email.focus();alert ("Il campo E-mail è obbligatorio"); return false;};
	if ((document.contatti.email.value.indexOf('@') == -1) || (document.contatti.email.value.indexOf('.') == -1))	{alert("Il campo E-Mail non contiene un indirizzo valido!"); document.contatti.email.focus(); return false;};
	if (document.contatti.suggerimenti.value == "")		{alert("Il campo suggerimenti è obbligatorio!");	document.contatti.suggerimenti.focus();return false;};

return true;

}


function resize() {
	if (screen.width != "0" && screen.width != "" && screen.width != null) {
		var ampiezza = eval(screen.width * 0.0977) + "%";
		document.getElementsByTagName('body').item(0).style.fontSize=ampiezza;
	} else {

		document.getElementsByTagName('body').item(0).style.fontSize="100%";
	}
}

window.onload=function() {
//resize();
if(document.getElementsByTagName && document.getElementById){
    document.getElementById("navigation").className="jsenable";
    BuildList();
    }
}

function BuildList(){
var hs=document.getElementById("navigation").getElementsByTagName("h3");
var ss=document.getElementById("navigation").getElementsByTagName("div");

for(var i=0;i<hs.length;i++){
    hs[i].onclick=function(){
        this.parentNode.className=(this.parentNode.className=="show") ? "hide" : "show";
        }
    }

for(var i=0;i<ss.length;i++){
    ss[i].onclick=function(){
        this.parentNode.parentNode.parentNode.className="hide";
        this.parentNode.parentNode.parentNode.getElementsByTagName("a")[0].focus();
        }
    }

}


// INIZIO  BANNER  RANDOM,  GESTIONE  CASUALE

var banners = new Array();
var bannersprovv = new Array();


banners[0] = "<object classid='clsid:D27CDB6E-AE6D-11cf-96B8-444553540000' name='object_swf' codebase='http://fpdownload.macromedia.com/get/flashplayer/current/swflash.cab' width='100%' height='100%'><param value='opaque' name='wmode' /><param name='movie' value='../images/banner_728x90_1.swf' /><embed src='../images/banner_728x90_1.swf' name='object_swf' width='100%' height='100%' wmode='opaque' type='application/x-shockwave-flash' pluginspage='http://www.adobe.com/go/getflashplayer'></embed></object>";
banners[1] = "<object classid='clsid:D27CDB6E-AE6D-11cf-96B8-444553540000' name='object_swf' codebase='http://fpdownload.macromedia.com/get/flashplayer/current/swflash.cab' width='100%' height='100%'><param value='opaque' name='wmode' /><param name='movie' value='../images/banner_728x90_2.swf' /><embed src='../images/banner_728x90_2.swf' name='object_swf' width='100%' height='100%' wmode='opaque' type='application/x-shockwave-flash' pluginspage='http://www.adobe.com/go/getflashplayer'></embed></object>";
banners[2] = "<object classid='clsid:D27CDB6E-AE6D-11cf-96B8-444553540000' name='object_swf' codebase='http://fpdownload.macromedia.com/get/flashplayer/current/swflash.cab' width='100%' height='100%'><param value='opaque' name='wmode' /><param name='movie' value='../images/banner_728x90_3.swf' /><embed src='../images/banner_728x90_3.swf' name='object_swf' width='100%' height='100%' wmode='opaque' type='application/x-shockwave-flash' pluginspage='http://www.adobe.com/go/getflashplayer'></embed></object>";


function ricreaarray() {
	for (i = 0; i < banners.length; i++) {
		var temp = banners[i];
		bannersprovv[i] = temp;
	}
}

function generarandom(max) {
	var casuale = Math.floor(Math.random() * max);
	return casuale;
}

function randombanner() {

	if (bannersprovv.length == 0) {
		ricreaarray();
	}

	var numerogenerato = generarandom(bannersprovv.length);
	document.getElementById('swf').innerHTML = bannersprovv[numerogenerato];
	bannersprovv.splice(numerogenerato,1);
}

// FINE  BANNER  RANDOM,  GESTIONE  CASUALE