jQuery手指滑动轮播效果

<script type="text/javascript" src="js/jquery-1.7.1.min.js"></script>
<script type="text/javascript" src="js/jquery.event.drag-1.5.min.js"></script>
<script type="text/javascript" src="js/jquery.touchSlider.js"></script>
// style 代码
@charset "utf-8";
*{margin:0;padding:0;list-style:none;border:0;}
body{width:100%;margin:0 auto;overflow:hidden}
/* main_image */
.main_visual{height:422px;border-top:1px solid #d7d7d7;overflow:hidden;position:relative;}
.main_image{height:422px;overflow:hidden;position:relative;}
.main_image ul{width:9999px;height:422px;overflow:hidden;position:absolute;top:0;left:0}
.main_image li{float:left;width:100%;height:422px;}
.main_image li span{display:block;width:100%;height:422px}
.main_image li a{display:block;width:100%;height:422px}
.main_image li .img_1{background:url('../images/img_main_1.jpg') center top no-repeat}
.main_image li .img_2{background:url('../images/img_main_2.jpg') center top no-repeat}
.main_image li .img_3{background:url('../images/img_main_3.jpg') center top no-repeat}
.main_image li .img_4{background:url('../images/img_main_4.jpg') center top no-repeat}
.main_image li .img_5{background:url('../images/img_main_5.jpg') center top no-repeat}
div.flicking_con{position:absolute;top:360px;left:50%;z-index:999;width:300px;height:21px;margin:0 0 0 -50px;}
div.flicking_con a{float:left;width:21px;height:21px;margin:0;padding:0;background:url('../images/btn_main_img.png') 0 0 no-repeat;display:block;text-indent:-1000px}
div.flicking_con a.on{background-position:0 -21px}
#btn_prev,#btn_next{z-index:11111;position:absolute;display:block;width:73px!important;height:74px!important;top:50%;margin-top:-37px;display:none;}
#btn_prev{background:url(../images/hover_left.png) no-repeat left top;left:100px;}
#btn_next{background:url(../images/hover_right.png) no-repeat right top;right:100px;}
// html 代码
<div class="main_visual">
  <div class="flicking_con">
    <a href="#">1</a>
    <a href="#">2</a>
    <a href="#">3</a>
    <a href="#">4</a>
    <a href="#">5</a>
  </div>
  <div class="main_image">
    <ul>
      <li><span class="img_3"></span></li>
      <li><span class="img_4"></span></li>
      <li><span class="img_1"></span></li>
      <li><span class="img_2"></span></li>
      <li><span class="img_5"></span></li>
    </ul>
    <a href="javascript：;" id="btn_prev"></a>
    <a href="javascript：;" id="btn_next"></a>
  </div>
</div>
// jQuery 代码
$(document).ready(function(){
  $(".main_visual").hover(function(){
    $("#btn_prev,#btn_next").fadeIn()
  },function(){
    $("#btn_prev,#btn_next").fadeOut()
  });
  $dragBln = false;
  $(".main_image").touchSlider({
    flexible : true,
    speed : 200,
    btn_prev : $("#btn_prev"),
    btn_next : $("#btn_next"),
    paging : $(".flicking_con a"),
    counter : function (e){
      $(".flicking_con a").removeClass("on").eq(e.current-1).addClass("on");
    }
  });
  $(".main_image").bind("mousedown", function() {
    $dragBln = false;
  });
  $(".main_image").bind("dragstart", function() {
    $dragBln = true;
  });
  $(".main_image a").click(function(){
    if($dragBln) {
      return false;
    }
  });
  timer = setInterval(function(){
    $("#btn_next").click();
  }, 5000);
  $(".main_visual").hover(function(){
    clearInterval(timer);
  },function(){
    timer = setInterval(function(){
      $("#btn_next").click();
    },5000);
  });
  $(".main_image").bind("touchstart",function(){
    clearInterval(timer);
  }).bind("touchend", function(){
    timer = setInterval(function(){
      $("#btn_next").click();
    }, 5000);
  });
});