/*****

Image Cross Fade Redux
Version 1.1
Last revision: 02.15.2006
steve@slayeroffice.com

Please leave this notice intact. 

Rewrite of old code found here: http://slayeroffice.com/code/imageCrossFade/index.html


*****/

window.addEventListener?window.addEventListener("load",so_init_mappaitalia,false):window.attachEvent("onload",so_init_mappaitalia);

var dtop=document, imgsitalia = new Array(), zIntervaltop = null, regione=0, oldselectedregion=0, selectedregion=0, currenttop=0, pausetop=false;
var imgsname = new Array();

imgsname[0]='italia';
imgsname[1]='valle';
imgsname[2]='piemonte';
imgsname[3]='lombardia';
imgsname[4]='trentino';
imgsname[5]='veneto';
imgsname[6]='friuli';
imgsname[7]='liguria';
imgsname[8]='emilia';
imgsname[9]='toscana';
imgsname[10]='umbria';
imgsname[11]='marche';
imgsname[12]='lazio';
imgsname[13]='abruzzo';
imgsname[14]='sardegna';
imgsname[15]='campania';
imgsname[16]='molise';
imgsname[17]='basilicata';
imgsname[18]='puglia';
imgsname[19]='calabria';
imgsname[20]='sicilia';

var nomeregione = new Array();

nomeregione[1]="valle d'aosta";
nomeregione[2]='piemonte';
nomeregione[3]='lombardia';
nomeregione[4]='trentino alto adige';
nomeregione[5]='veneto';
nomeregione[6]='friuli venezia giulia';
nomeregione[7]='liguria';
nomeregione[8]='emilia romagna';
nomeregione[9]='toscana';
nomeregione[10]='umbria';
nomeregione[11]='marche';
nomeregione[12]='lazio';
nomeregione[13]='abruzzo';
nomeregione[14]='sardegna';
nomeregione[15]='campania';
nomeregione[16]='molise';
nomeregione[17]='basilicata';
nomeregione[18]='puglia';
nomeregione[19]='calabria';
nomeregione[20]='sicilia';

var nomeregione_m = new Array();

nomeregione_m[1]="Valle d'Aosta";
nomeregione_m[2]='Piemonte';
nomeregione_m[3]='Lombardia';
nomeregione_m[4]='Trentino Alto Adige';
nomeregione_m[5]='Veneto';
nomeregione_m[6]='Friuli Venezia Giulia';
nomeregione_m[7]='Liguria';
nomeregione_m[8]='Emilia Romagna';
nomeregione_m[9]='Toscana';
nomeregione_m[10]='Umbria';
nomeregione_m[11]='Marche';
nomeregione_m[12]='Lazio';
nomeregione_m[13]='Abruzzo';
nomeregione_m[14]='Sardegna';
nomeregione_m[15]='Campania';
nomeregione_m[16]='Molise';
nomeregione_m[17]='Basilicata';
nomeregione_m[18]='Puglia';
nomeregione_m[19]='Calabria';
nomeregione_m[20]='Sicilia';

function so_init_mappaitalia() {
	
	for(i=0;i<imgsname.length;i++) {
		imgsitalia[i]=dtop.getElementById(imgsname[i]);
		imgsitalia[i].xOpacity = 0;
	}
	
	imgsitalia[0].style.display = "block";
	imgsitalia[0].xOpacity = .99;
}

function so_xfade_mappaitalia() {
	cOpacity = imgsitalia[currenttop].xOpacity;
	nIndex = imgsitalia[regione]?regione:0;
	nOpacity = imgsitalia[nIndex].xOpacity;
	
	cOpacity-=.05;
	nOpacity+=.05;
	
	imgsitalia[nIndex].style.display = "block";
	imgsitalia[currenttop].xOpacity = cOpacity;
	imgsitalia[nIndex].xOpacity = nOpacity;
	
	setOpacity(imgsitalia[currenttop]);
	setOpacity(imgsitalia[nIndex]);
	
	if(cOpacity<=0) {
		imgsitalia[currenttop].style.display = "none";
		currenttop = nIndex;
	} else {
		setTimeout(so_xfade_mappaitalia,10);
	}
	
	function setOpacity(obj) {
		if(obj.xOpacity>.99) {
			obj.xOpacity = .99;
			return;
		}
		obj.style.opacity = obj.xOpacity;
		obj.style.MozOpacity = obj.xOpacity;
		obj.style.filter = "alpha(opacity=" + (obj.xOpacity*100) + ")";
	}
	
}

function show_nofade_mapaitalia() {
	try {
		nIndex = imgsitalia[regione]?regione:0;
		imgsitalia[nIndex].style.opacity = .99;
		imgsitalia[nIndex].style.MozOpacity = .99;
		imgsitalia[nIndex].style.filter = "alpha(opacity=99)";
		if ((currenttop!=nIndex) && (currenttop!=selectedregion)) {
			imgsitalia[currenttop].style.opacity = 0;
			imgsitalia[currenttop].style.MozOpacity = 0;
			imgsitalia[currenttop].style.filter = "alpha(opacity=0)";
		}
		imgsitalia[nIndex].style.display = "block";
		if (oldselectedregion!=0) {
			imgsitalia[oldselectedregion].style.display = "none";
		}
		if ((currenttop!=nIndex) && (currenttop!=selectedregion)) {
			imgsitalia[currenttop].style.display = "none";
		}
		currenttop = nIndex;
	} catch(e) {
		alert(e.message);
	}
}