/*轮播图 左右按钮 小白点*/
		#second_div{
		margin-top: 160px;
		}
		.img_box{
		overflow: hidden;
		width:100%;
		height:420px;
		border:1px solid;
		position:relative;
	}		
		.img_box img{
		width:100%;
		position:absolute;
	}		
		.ul5{
		list-style: none;
		position:absolute;
		left:580px;
		top:565px;
		}	
		.ul5 li{
		float:left;
		margin-left:20px;
		width:40px;
		height:5px;
		border:0px;
		background:lawngreen;
	}
		.d1,.d2{
		width:50px;
		height:60px;
		background-color: rgba(10,10,10,0.5);
		text-align: center;
		font-size:26px;
		font-weight: 800px;
		line-height:60px;
		cursor: pointer;
		}
		.d1{
		position:absolute;
		top:373px;
		left:25px;
		}
		.d2{
		position:absolute;
		top:373px;
		left:1445px;
		}

<!-- 轮播图 -->
<div id="second_div">
<div class="img_box">
	<img src="http://www.mamicode.com/img/ban1.jpg">
	<img src="http://www.mamicode.com/img/ban2.jpg">
	<img src="http://www.mamicode.com/img/ban3.jpg">
	<img src="http://www.mamicode.com/img/ban4.png"> 
</div>	
	<ul class="ul5">
	<li></li>
	<li></li>
	<li></li>
	<li></li>
</ul>
	<div class="d1"><</div>
	<div class="d2">></div>
</div>

    <script type="text/javascript">
        $(document).ready(function(){
//搜索按钮
    $("#ss").click(function(){
        var new_li = $("<li>"+ $("#skuang").val() +"</li>");
        $("#d1 ul").append(new_li);
        $("#d1").hide();
        $("#skuang").val("");

        })

        $("#skuang").focus(function(){
            $("#d1").css("display","block");
        });
        
        $("#skuang").blur();
        $("#qingch").click(function(){
            $("#d1 li:gt(0)").remove();
            $("#d1").hide();
            
        });

//轮播图
        var img=$(".img_box img");
        var li=$(".ul5 li");
        var divW=$(".img_box").width();
        var len=$(".img_box img").length;
        img.css("left",divW);
        img.eq(0).css("left",0);
        li.eq(0).css("background","red");
        var index=0;
        var next=0;
        function show(){
            next++;
            if(next==len){
                next=0;
            }
            img.eq(next).css("left",divW);
            img.eq(index).animate({"left":-divW});
            img.eq(next).animate({"left":0});
            li.eq(next).css("background","red");
            li.eq(index).css("background","lawngreen");
            index=next;
        }
        t=setInterval(show,2000);
        function show1(){
            next--;
            if(next==-1){
                next=len-1;
            }
            img.eq(next).css("left",-divW);
            img.eq(index).animate({"left":divW});
            img.eq(next).animate({"left":0});
            li.eq(next).css("background","red");
            li.eq(index).css("background","lawngreen");
            index=next;                    
        }
        img.hover(function(){
            clearInterval(t);                    
        },function(){
            t=setInterval(show,2000);
        })
        //左右按钮
        $(".d2").mousedown(function(){
            clearInterval(t);
            show();
        })
        $(".d2").mousedown(function(){
                    t=setInterval(show,2000);
        })    
        $(".d1").mousedown(function(){
            clearInterval(t);
                    show1();
        })
        $(".d1").mousedown(function(){
            t=setInterval(show,2000);
        })
        //小白点 点击
        li.mousedown(function(){
            num=$(this).index();
            if(num==next){
                return;
            }else if(num<next){
                clearInterval(t);
                img.eq(num).css("left",-divW);
                    img.eq(index).animate({"left":divW});
                    img.eq(num).animate({"left":0});
                    li.eq(num).css("background","red");
                    li.eq(index).css("background","lawngreen");
                    index=num;
                    next=num;
            }else if(num>next){
                clearInterval(t);
                    img.eq(num).css("left",divW);
                    img.eq(index).animate({"left":-divW});
                    img.eq(num).animate({"left":0});
                    li.eq(num).css("background","red");
                    li.eq(index).css("background","lawngreen");
                    index=num;
                    next=num;
            }
    })
                li.mouseup(function(){
                    t=setInterval(show,2000);
            })
        })
    </script>