/*		
function show(k) {	
	
	
	if(k==num)
		k=0;
	
	if(isNaN(k)){		
		k=num-1;
	}
	
	if(k==-1)
		k=num-1;

	document.getElementById('partenza').src = ws_images[k].src;
	
	k++;
	
	running=true;
}*/



var ws_images;
var ws_load;

var idx;
var num;

var period;
var running;

var extension;

var k;
		
function oscroller_init() {
	ws_images = new Array();
	ws_load = new Array();
		
	idx = 0;
	
	num = num_immagini;
	period = tempo;
		
	extension = "." + estensione;

	load();
			
	running = true;

	setTimeout('scroll()',period);
}
		
function scroll() {
	if(running) {
		idx++;
		if(idx>=num) {
			idx=0;
		}
		
		k=idx;
		
		document.images.partenza.src = ws_images[idx].src;
		
		setTimeout("scroll()",period);
	}
}
		
function stop() {
	running = false;
}
		
function show(i) {
	stop();
	idx=i;
	
	if(isNaN(idx) || idx==-1)
		idx=num-1;
		
	if(idx>=num)
		idx=0;
	
	//alert(idx);
	
	document.images.partenza.src = ws_images[idx].src;
	running=true;
}
		
function run() {
	if(!running) {
		running=true;		
		scroll();
	}
}
		
function load() {
	for(i=0;i<num;i++) {
		loadImage(i);
	}
}
		
function loadImage(i) {
	ws_images[i] = new Image();
	ws_images[i].src = cartella + nome_img + i + extension;
}