function hideImage(id){
	document.getElementById(id).style.opacity = 0;
	document.getElementById(id).style.position = "absolute";
	document.getElementById(id).style.filter = "alpha(opacity=0)";
	document.getElementById(id).style.zIndex = 1;
}

function hideImages(arr) {
	for (var i=0;i<arr.length;i++){
		hideImage(arr[i]);
	}
}

function initImage(id,z) {
	image = document.getElementById(id);
	image.style.zIndex = z;
	setOpacity(image, 0);
	fadeIn(id,0);
}

var next = true;
function fadeIn(objId,opacity) {
	if (document.getElementById) {
		obj = document.getElementById(objId);
		if (opacity <= 100) {
			setOpacity(obj, opacity);
			opacity += 5;
			window.setTimeout("fadeIn('"+objId+"',"+opacity+")", 50);
			next = false;
		}else {
			next = true;
		}
	}
}
function setOpacity(obj, opacity) {
	opacity = (opacity == 100)?99.999:opacity;
	// IE/Win
	obj.style.filter = "alpha(opacity:"+opacity+")";
	// Safari<1.2, Konqueror
	obj.style.KHTMLOpacity = opacity/100;
	// Older Mozilla and Firefox
	obj.style.MozOpacity = opacity/100;
	// Safari 1.2, newer Firefox and Mozilla, CSS3
	obj.style.opacity = opacity/100;
}

var ind = 0;
var counter = 1;
function gallery(divs) {
	if(ind >= divs.length) {
		ind = 0;
		counter++;
	}
	if(next) {
		initImage(divs[ind++],counter);
	}
	timeout = (ind%2==0)? 3000:3000;
	window.setTimeout(function() {gallery(divs)}, timeout);
}

window.onload = function() {
	gallery(divs);
	ciao();/*funzione per far partire il menu*/
}