jQuery 1.4 循环图片滚动

答案：<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />  
<title>jQuery 循环图片滚动</title> 
<style type="text/css"> 
*{ margin:0; padding:0;}
body{ font-size:12px; color:#000; background:#323232;}
li{ list-style:none;}
img{ border:none;}
.box{ width:380px; margin:20px auto; height:24px; padding-top:144px; background:#000; position:relative; overflow:hidden;}
.box ul{ position:absolute; top:10px; left:0; height:114px; width:800px;}
.box li{ float:left; margin-left:16px; _display:inline; padding-top:28px; width:80px; height:56px; filter:alpha(opacity=60);-moz-opacity:0.60;opacity:0.60;}
.box li.cur{ width:160px; height:114px; padding-top:0; filter:alpha(opacity=100);-moz-opacity:1;opacity:1;}
.box li img{ width:100%; height:100%; background:#000;}
.box div{ height:24px; line-height:24px;}
.box a{ text-decoration:none;font-family:Arial, Helvetica, sans-serif; width:150px; font-weight:900; color:#900;}
.box a:hover{ background:#900; color:#fff;}
.box .gol{ float:left;text-align:left; padding-left:6px; } 
.box .gor{ float:right;text-align:right; padding-right:6px; } 
</style> 
</head> 
<body> 
<div class="box" id="box"> 
	<ul> 
        <li><a href="#nogo"><img src="/jscss/demoimg/wall_s1.jpg" alt="美景" /></a></li> 
        <li class="cur"><a href="#nogo"><img src="/jscss/demoimg/wall_s5.jpg" alt="流浪" /></a></li> 
        <li><a href="#nogo"><img src="/jscss/demoimg/wall_s2.jpg" alt="旅游" /></a></li> 
        <li><a href="#nogo"><img src="/jscss/demoimg/wall_s3.jpg" alt="休闲" /></a></li> 
        <li><a href="#nogo"><img src="/jscss/demoimg/wall_s4.jpg" alt="住宿" /></a></li> 
	</ul> 
    <div> 
    	<a href="#nogo" class="gol" id="gol"><<</a> 
        <a href="#nogo" class="gor" id="gor">>></a> 
    </div> 
</div> 
<script type="text/javascript" src="/ajaxjs/jquery-1.4.2.min.js"></script> 
<script type="text/javascript"> 
	$(function(){
	trid.init();
	});
	var trid=new Object();
	trid={
		li:$("#box li"),
		licur:$("#box li.cur"),
		ul:$("#box ul"),
		len:$("#box li").length,
		door:true,
		curidx:1,
		gol:$("#gol"),
		gor:$("#gor"),
		init: function(){
            this.format();
            this.bindact();
        },
        format: function(){
            var w = (this.len) * 96 + 175 + "px";
            this.ul.css({
                "width": w
            });
        },
        step: function(i){
            var self = this;
            if (!self.door) 
                return false;
            self.door = false;
            self.curidx += i;
            var m = 92 * i;
            if (i < 0) {
                if (self.curidx <= -1) {
                    self.curidx += self.li.length;
                }
                i = -i;
                for (var k = 0; k < i; k++) {
                    self.ul.find("li:last").prependTo(self.ul);
                }
                self.ul.css({
                    "margin-left": m + "px"
                });
                self.ul.animate({
                    "margin-left": "0"
                }, {
                    duration: 500,
                    complete: function(){
                        self.door = true;
                    }
                });
            }
            else 
                if (i > 0) {
                    if (self.curidx >= self.li.length) {
                        self.curidx -= self.li.length;
                    }
                    self.ul.animate({
                        "margin-left": -m + "px"
                    }, {
                        duration: 500,
                        complete: function(){
                            for (var k = 0; k < i; k++) {
                                self.ul.find("li:first").appendTo(self.ul);
                            }
                            self.ul.css({
                                "margin-left": 0
                            });
                            self.door = true;
                        }
                    });
                }
			self.display();
        },
        display: function(){
			var self=this;
			self.licur.animate({				
				"padding-top":"28px", 
				"width":"80px",
				"height":"56px",
				"opacity":"0.6"
				},{duration:500});
			self.li.eq(self.curidx).animate({
				"width":"160px", 
				"height":"114px", 
				"padding-top":"0",
				"opacity":"1.0"
				},{duration:500,
				complete:function(){ cur(self.li.eq(self.curidx)); }});
			this.licur=this.li.eq(this.curidx);
        },
        bindact: function(){
            var self = this;
            this.gor.bind("click", function(){
                self.step(1);
	$(this).blur();
            });
            this.gol.bind("click", function(){
                self.step(-1);
	$(this).blur();
            });
            self.li.bind("click", function(){
	if($(this).hasClass("cur")) return;						   
                var j = $(this).index() - 1;
                self.step(j);
            });
        }
}

function cur(ele, currentClass, tag){
    var ele = $(ele) || ele;
    var tag = tag || "";
    var mark = currentClass || "cur";
    ele.addClass(mark).siblings(tag).removeClass(mark);
}
	
</script> 
</body> 
</html>
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