记录：旋转木马轮播图

<!DOCTYPE html>
<html>
<head lang="en">
  <meta charset="UTF-8">
  <title>旋转木马轮播图</title>
  <link rel="stylesheet" href="css/index.css"/>
  <script src="common.js"></script>
  <script>
    //
    var config = [
      {
        width: 400,
        top: 20,
        left: 50,
        opacity: 0.2,
        zIndex: 2
      },//0
      {
        width: 600,
        top: 70,
        left: 0,
        opacity: 0.8,
        zIndex: 3
      },//1
      {
        width: 800,
        top: 100,
        left: 200,
        opacity: 1,
        zIndex: 4
      },//2
      {
        width: 600,
        top: 70,
        left: 600,
        opacity: 0.8,
        zIndex: 3
      },//3
      {
        width: 400,
        top: 20,
        left: 750,
        opacity: 0.2,
        zIndex: 2
      }//4

    ];

    //页面加载的事件
    window.onload = function () {
      var flag=true;//假设全部的动画执行完毕了---锁====================================================
      var list = my$("slide").getElementsByTagName("li");
      //1---图片散开
      function assign() {
        for (var i = 0; i < list.length; i++) {
          //设置每一个li,都要把宽,层级,透明度,left,top到达指定的目标位置
          animate(list[i], config[i],function () {
            flag=true;//===============================================
          });
        }
      }
      assign();
      //右边按钮
      my$("arrRight").onclick = function () {
        if(flag){//==========================================================
          flag=false;
          config.push(config.shift());
          assign();//从新分配
        }
      };
      //左边按钮
      my$("arrLeft").onclick = function () {
        if(flag){//==================================================
          flag=false;
          config.unshift(config.pop());
          assign();
        }

      };
      //鼠标进入,左右焦点的div显示
      my$("slide").onmouseover = function () {
        animate(my$("arrow"), {"opacity": 1});
      };
      //鼠标离开,左右焦点的div隐藏
      my$("slide").onmouseout = function () {
        animate(my$("arrow"), {"opacity": 0});
      };
    };
  </script>

</head>
<body>
<div class="wrap" id="wrap">
  <div class="slide" id="slide">
    <ul>
      <li><a href="#"><img src="images/slidepic1.jpg" alt=""/></a></li>
      <li><a href="#"><img src="images/slidepic2.jpg" alt=""/></a></li>
      <li><a href="#"><img src="images/slidepic3.jpg" alt=""/></a></li>
      <li><a href="#"><img src="images/slidepic4.jpg" alt=""/></a></li>
      <li><a href="#"><img src="images/slidepic5.jpg" alt=""/></a></li>
    </ul>
    <div class="arrow" id="arrow">
      <a href="javascript:;" class="prev" id="arrLeft"></a>
      <a href="javascript:;" class="next" id="arrRight"></a>
    </div>
  </div>
</div>

</body>
</html>