//************************************************************
//VERIFICA DEL BROWSER E I SUOI COMANDI
var doCheck = (document.all!=null);
	if (doCheck == false) {
		versionNN = navigator.userAgent.toLowerCase();
		if (versionNN.search(/safari/i) != -1)
			browser = "safari"
		else if (versionNN.search(/mozilla\/4/i) != -1)
			browser = "NN4";
		else
			browser = "NN6";
	}
	else {
		var agt = navigator.userAgent.toLowerCase();
		if ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1))
			browser = "IE";
		else
			browser = "OP";
	}

	if (document.layers) {
		layerVisible = 'show';
		layerInvisible = 'hide';
	}

	if(document.all) {
		IE4 = true;
	}
	else {
		if((browser == "NN4") || (browser == "NN6") || (browser == "safari")) {
		NS4 = true;
		}
	}

var IE4 = false;
var NS4 = false;
var layerVisible = 'visible';
var layerInvisible = 'hidden'

function getLayerObj(layerID)
{
	var layerObj;
	if (browser=='safari'){
	alert('0');
		layerObj = document.all(layerID);
	 	return layerObj;
	}
	if (document.all){
		layerObj = document.all(layerID);
		alert('1');
	}
	else if (document.layers){
		layerObj = document.layers[layerID];
		alert('2');
	}
	else if (document.getElementById){
		layerObj = document.getElementById(layerID).style;
		alert('3');
	}

	alert('-1');
	return layerObj;
}

function getLayerStyleObj(layerID){
var layerObj;
var layerStyleObj;
layerObj = getLayerObj(layerID);
	if(IE4){
	layerStyleObj = layerObj.style;
	}
	else
	{
		if(NS4){
		layerStyleObj = layerObj;
		}
	}

return layerStyleObj;
}
//End of info taken from Header.txt
//************************************************************