https://somz59.ru/t/v44/images/slider.js

1$(function(){
2	$this = $('#slider');
3	li = $this.find('li');
4	left = $('a.arr-left');
5	right = $('a.arr-right');
6	width = -parseInt($this.width());
7	html = $this.html();
8	$this.html(html+html+html);
9	$this.css('margin-left', width);
10	left.click(sldLf);
11	right.click(sldRt);
12	int = setInterval(sldRt, 3000);
13})
14
15function sldRt() {
16	if($this.is(':animated')) return false;
17	$this.animate({
18		'margin-left' : parseInt($this.css('margin-left'))-126	
19	}, 600, begin);
20	return false;
21}
22function sldLf() {
23	if($this.is(':animated')) return false;
24	$this.animate({
25		'margin-left' : parseInt($this.css('margin-left'))+126	
26	}, 600, begin);
27	return false;
28}
29function begin() {
30	if (parseInt($this.css('margin-left')) >= 0 ||parseInt($this.css('margin-left')) <= -parseInt($this.width() + width)) {
31		$this.css('margin-left', width);	
32	}
33}