var intervalSHOW = "";
var intervalHIDE = "";
var Tempo_TimeOut = 500;

function ShowDiv(NumLivello){
	clearTimeout(intervalHIDE);
	intervalSHOW=setTimeout("ShowDivStart('" + NumLivello + "')",Tempo_TimeOut);
}

function HideDiv(NumLivello){
	clearTimeout(intervalSHOW);	
	intervalHIDE=setTimeout("HideDivStart('" + NumLivello + "')",Tempo_TimeOut);
} 

function ShowDivStart(NumLivello){
	clearTimeout(intervalHIDE);
	document.getElementById("Liv_Menu_0").style.zIndex=2;
	document.getElementById("Liv_Menu_1").style.zIndex=0;
	document.getElementById("Liv_Menu_2").style.zIndex=0;
	document.getElementById("Liv_Menu_3").style.zIndex=0;
	document.getElementById("Liv_Menu_4").style.zIndex=0;
	eval('document.getElementById("' + NumLivello + '").style.zIndex=2');
	document.getElementById("Liv_Menu_0").style.visibility="visible";
	document.getElementById("Liv_Menu_1").style.visibility="hidden";
	document.getElementById("Liv_Menu_2").style.visibility="hidden";
	document.getElementById("Liv_Menu_3").style.visibility="hidden";
	document.getElementById("Liv_Menu_4").style.visibility="hidden";
	eval('document.getElementById("' + NumLivello + '").style.visibility="visible"')
}


function HideDivStart(NumLivello){
	clearTimeout(intervalSHOW);
	document.getElementById("Liv_Menu_0").style.visibility="hidden";
	document.getElementById("Liv_Menu_1").style.visibility="hidden";
	document.getElementById("Liv_Menu_2").style.visibility="hidden";
	document.getElementById("Liv_Menu_3").style.visibility="hidden";
	document.getElementById("Liv_Menu_4").style.visibility="hidden";
	if(LayerAttuale != "Liv_Menu_0") {
		document.getElementById("Liv_Menu_0").style.visibility="visible";
		eval('document.getElementById("' + LayerAttuale + '").style.visibility="visible"');
	
	}
}