var bName = navigator.appName;
var bVer = parseInt(navigator.appVersion);

var NS6 = (bName == "Netscape" && bVer >=5 && bVer < 7); // alternativa check
															// su getElementById
var NS4= document.layers;
var IE4=  document.all;

// LAYER SWITCHING CODE

if (NS4) {
	layerStyleRef="layer.";
	layerRef="document.layers[";
	styleSwitch="]"; 
	layerDoc=".document.";
}
else if (IE4) {
	 layerStyleRef="layer.style.";
	 layerRef="document.all[";
	 styleSwitch="].style"; layerDoc=".";
}
else if (NS6) { 
	layerStyleRef="style.";
	layerRef="document.getElementById(";
	styleSwitch=").style"; layerDoc=".";
}	
else {
}

menutop = new Array ();

//homeeng
menutop[0]="menuopenengfinance";
menutop[1]="menuopenengpostal";

 
function showLayer(layerName){
	if (NS4 || IE4 || NS6) {
		eval(layerRef+'"'+layerName+'"'+styleSwitch+'.visibility="visible"');
	}		
}
		 
function hideLayer(layerName){
	if (NS4 || IE4 || NS6) {
		eval(layerRef+'"'+layerName+'"'+styleSwitch+'.visibility="hidden"');
	}		
}
		
function hideAll () {
	for (i_loc=0; i_loc < menutop.length; i_loc ++) {
		hideLayer (menutop[i_loc]);
	}
	return false;
}






/*




// Gestione voci About us

function returnObjById(id){
        if (document.getElementById)
            var returnVar = document.getElementById(id);
        else if (document.all)
            var returnVar = document.all[id];
        else if (document.layers)
            var returnVar = document.layers[id];
        return returnVar;
}




function startmenu()
{
	
	returnObjById('servicesEngContainer').className = "mostra";
	returnObjById('voce_01').className = "nascondi";
	returnObjById('voce_02').className = "nascondi";
	returnObjById('voce_03').className = "nascondi";
	returnObjById('voce_04').className = "nascondi";
	returnObjById('voce_05').className = "nascondi";
}
function startmenuinit()
{
	returnObjById('servicesEngContainer').className = "mostra";
	returnObjById('voce_01').className = "mostra";
	returnObjById('voce_02').className = "nascondi";
	returnObjById('voce_03').className = "nascondi";
	returnObjById('voce_04').className = "nascondi";
	returnObjById('voce_05').className = "nascondi";
}

function menufunc(menuId)
{
	if(returnObjById(menuId).className == "nascondi")
	{
		startmenu();
		returnObjById(menuId).className = "mostra";
	}
	else
	{
		startmenu();
	}
}


*/