/*****

Image Cross Fade Redux
Version 1.0
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,false):window.attachEvent("onload",so_init);

var d=document, imgs = new Array(), zInterval = null, current=0, pause=false,interval=5000;
var text=new Array()
var linkurl=new Array()
var j=0

text[0]="Ecco...inizia un nuovo viaggio!"
text[1]="Pieno o vuoto?"
text[2]="Piccoli Picasso all'opera!"
text[3]="L'invasione dei tappi"
text[4]="Destra o sinistra?"
text[5]="Inizia il viaggio, comincia l'avventura!"
text[6]="Il primo giorno di scuola..."
text[7]="Un inizio entusiasmante!"

linkurl[0]="/Istituto/Vitadellascuola/tabid/63/articleType/ArticleView/articleId/46/Eccoinizia-un-nuovo-viaggio.aspx"
linkurl[1]="/Istituto/Vitadellascuola/tabid/63/articleType/ArticleView/articleId/45/Pieno-o-vuoto.aspx"
linkurl[2]="/Istituto/Vitadellascuola/tabid/63/articleType/ArticleView/articleId/44/Piccoli-Picasso-allopera.aspx"
linkurl[3]="/Istituto/Vitadellascuola/tabid/63/articleType/ArticleView/articleId/43/Linvasione-dei-tappi.aspx"
linkurl[4]="/Istituto/Vitadellascuola/tabid/63/articleType/ArticleView/articleId/42/Destra-o-sinistra.aspx"
linkurl[5]="/ScuolaSecondariadiprimogrado/Vitadellascuola/tabid/77/articleType/ArticleView/articleId/39/Inizia-il-viaggio-comincia-lavventura.aspx"
linkurl[6]="/Istituto/Vitadellascuola/tabid/63/articleType/ArticleView/articleId/40/Il-primo-giorno-di-scuola.aspx"
linkurl[7]="/Istituto/Vitadellascuola/tabid/63/articleType/ArticleView/articleId/41/Un-inizio-entusiasmante.aspx"

function so_init() {
	if(!d.getElementById || !d.createElement)return;
	
	/*css = d.createElement("link");
	css.setAttribute("href","js/xfade2.css");
	css.setAttribute("rel","stylesheet");
	css.setAttribute("type","text/css");
	d.getElementsByTagName("head")[0].appendChild(css);*/
	
	imgs = d.getElementById("imageContainerHome").getElementsByTagName("img");
	for(i=1;i<imgs.length;i++) imgs[i].xOpacity = 0;
	imgs[0].style.display = "block";
	imgs[0].xOpacity = .99;

	document.getElementById('frase').innerHTML=text[0];
	document.getElementById('photolink').href=linkurl[0];
	
	setTimeout(so_xfade,interval);
}

function so_xfade() {
	cOpacity = imgs[current].xOpacity;
	nIndex = imgs[current+1]?current+1:0;
	nOpacity = imgs[nIndex].xOpacity;
	
	cOpacity-=.05; 
	nOpacity+=.05;
	
	imgs[nIndex].style.display = "block";
	imgs[current].xOpacity = cOpacity;
	imgs[nIndex].xOpacity = nOpacity;
	
	setOpacity(imgs[current]); 
	setOpacity(imgs[nIndex]);


	/*roba nostra*/
	document.getElementById('frase').innerHTML=text[nIndex];
	document.getElementById('photolink').href=linkurl[nIndex];


	
	if(cOpacity<=0) {
		imgs[current].style.display = "none";
		current = nIndex;
		setTimeout(so_xfade,interval);
	} else {
		setTimeout(so_xfade,50);
	}
	
	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) + ")";
	}
	
}