//funzione per preload
function MM_swapImgRestore() { //v3.0
	var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
	var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
	var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
	if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
	var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
	d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
	if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
	for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
	if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
	var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
	if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

//funzione per aprire i link esterni in una nuova finestra
function nuova_finestra(pagina) {
	window.open(pagina,'Galleria','scrollbars=yes,resizable=yes,status=yes,width=780,height=520,location=yes,toolbar=yes');
}
//funzione per l'ingrandimento delle immagini in una pop up 		

function apri(url_foto,des_foto){
	addr="/include/fullsize.asp?"+url_foto+"&"+escape(des_foto)
	alt=350
	lar=500
	rszb=(document.layers)?1:0;
	props='height='+alt+',width='+lar+',top='+parseInt((screen.availHeight-alt)/2)+',left='+parseInt((screen.availWidth-lar)/2)+',scrollbars=0,resizable='+rszb+',toolbar=0,menubar=0,location=0,status=0';
	window.open(addr,'_blank',props);
}

//funzione per aprire una finestra piccola e centrata
function apriPopupCentrata(nome, titolo, lar, alt, feat){
    var wdt = screen.width;
    var hgt = screen.height;
    var x = Math.round( (wdt / 2) - (lar / 2) );
    var y = Math.round( (hgt / 2) - (alt / 2) );
    var feat = 'scrollbars=yes,resizable=no,status=no,location=no,toolbar=no'
    window.open(nome, titolo, 'width=' + lar + ',height=' + alt + ',left=' + x + ',screenX=' + x + ',top=' + y + ',screenY=' + y + ',' + feat); 
}


//fa crescere progressivamente l'opacità di un immagine
function initImage() {
	imageId = 'bannerimage';
	if (image = document.getElementById(imageId)) {
	setOpacity(image, 0);
	image.style.visibility = "visible";
	fadeIn(imageId,0);
	}
}

function fadeIn(objId,opacity) {
	if (document.getElementById) {
		obj = document.getElementById(objId);
		if (opacity <= 100) {
			setOpacity(obj, opacity);
			//opacity += 10;
			opacity += 7;
			//window.setTimeout("fadeIn('"+objId+"',"+opacity+")", 50);
			window.setTimeout("fadeIn('"+objId+"',"+opacity+")", 60);
		}
	}
}

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;
}

window.onload = function() {
	initImage();

}