<!--首页图片漂浮开始-->
 <script type="text/javascript" language="javascript">
           function addEvent(obj, evtType, func, cap) {
               cap = cap || false;
               if (obj.addEventListener) {
                   obj.addEventListener(evtType, func, cap);
                   return true;
               } else if (obj.attachEvent) {
                   if (cap) {
                       obj.setCapture();
                       return true;
                   } else {
                       return obj.attachEvent("on" + evtType, func);
                   }
               } else {
                   return false;
               }
           }
           function getPageScroll() {
               var xScroll, yScroll;
               if (self.pageXOffset) {
                   xScroll = self.pageXOffset;
               } else if (document.documentElement && document.documentElement.scrollLeft) {
                   xScroll = document.documentElement.scrollLeft;
               } else if (document.body) {
                   xScroll = document.body.scrollLeft;
               }
               if (self.pageYOffset) {
                   yScroll = self.pageYOffset;
               } else if (document.documentElement && document.documentElement.scrollTop) {
                   yScroll = document.documentElement.scrollTop;
               } else if (document.body) {
                   yScroll = document.body.scrollTop;
               }
               arrayPageScroll = new Array(xScroll, yScroll);
               return arrayPageScroll;
           }
           function GetPageSize() {
               var xScroll, yScroll;
               if (window.innerHeight && window.scrollMaxY) {
                   xScroll = document.body.scrollWidth;
                   yScroll = window.innerHeight + window.scrollMaxY;
               } else if (document.body.scrollHeight > document.body.offsetHeight) {
                   xScroll = document.body.scrollWidth;
                   yScroll = document.body.scrollHeight;
               } else {
                   xScroll = document.body.offsetWidth;
                   yScroll = document.body.offsetHeight;
               }
               var windowWidth, windowHeight;
               if (self.innerHeight) {
                   windowWidth = self.innerWidth;
                   windowHeight = self.innerHeight;
               } else if (document.documentElement && document.documentElement.clientHeight) {
                   windowWidth = document.documentElement.clientWidth;
                   windowHeight = document.documentElement.clientHeight;
               } else if (document.body) {
                   windowWidth = document.body.clientWidth;
                   windowHeight = document.body.clientHeight;
               }
               if (yScroll < windowHeight) {
                   pageHeight = windowHeight;
               } else {
                   pageHeight = yScroll;
               }
               if (xScroll < windowWidth) {
                   pageWidth = windowWidth;
               } else {
                   pageWidth = xScroll;
               }
               arrayPageSize = new Array(pageWidth, pageHeight, windowWidth, windowHeight)
               return arrayPageSize;
           }

           var AdMoveConfig = new Object();
           AdMoveConfig.IsInitialized = false;
           AdMoveConfig.ScrollX = 0;
           AdMoveConfig.ScrollY = 0;
           AdMoveConfig.MoveWidth = 0;
           AdMoveConfig.MoveHeight = 0;
           AdMoveConfig.Resize = function () {
               var winsize = GetPageSize();
               AdMoveConfig.MoveWidth = winsize[2];
               AdMoveConfig.MoveHeight = winsize[3];
               AdMoveConfig.Scroll();
           }
           AdMoveConfig.Scroll = function () {
               var winscroll = getPageScroll();
               AdMoveConfig.ScrollX = winscroll[0];
               AdMoveConfig.ScrollY = winscroll[1];
           }
           addEvent(window, "resize", AdMoveConfig.Resize);
           addEvent(window, "scroll", AdMoveConfig.Scroll);
           function AdMove(id) {
               if (!AdMoveConfig.IsInitialized) {
                   AdMoveConfig.Resize();
                   AdMoveConfig.IsInitialized = true;
               }
               var obj = document.getElementById(id);
               obj.style.position = "absolute";
               var W = AdMoveConfig.MoveWidth - obj.offsetWidth;
               var H = AdMoveConfig.MoveHeight - obj.offsetHeight;
               var x = W * Math.random(), y = H * Math.random();
               var rad = (Math.random() + 1) * Math.PI / 6;
               var kx = Math.sin(rad), ky = Math.cos(rad);
               var dirx = (Math.random() < 0.5 ? 1 : -1), diry = (Math.random() < 0.5 ? 1 : -1);
               var step = 1;
               var interval;
               this.SetLocation = function (vx, vy) { x = vx; y = vy; }
               this.SetDirection = function (vx, vy) { dirx = vx; diry = vy; }
               obj.CustomMethod = function () {
                   obj.style.left = (x + AdMoveConfig.ScrollX) + "px";
                   obj.style.top = (y + AdMoveConfig.ScrollY) + "px";
                   rad = (Math.random() + 1) * Math.PI / 6;
                   W = AdMoveConfig.MoveWidth - obj.offsetWidth;
                   H = AdMoveConfig.MoveHeight - obj.offsetHeight;
                   x = x + step * kx * dirx;
                   if (x < 0) { dirx = 1; x = 0; kx = Math.sin(rad); ky = Math.cos(rad); }
                   if (x > W) { dirx = -1; x = W; kx = Math.sin(rad); ky = Math.cos(rad); }
                   y = y + step * ky * diry;
                   if (y < 0) { diry = 1; y = 0; kx = Math.sin(rad); ky = Math.cos(rad); }
                   if (y > H) { diry = -1; y = H; kx = Math.sin(rad); ky = Math.cos(rad); }
               }
               this.Run = function () {
                   var delay = 10;
                   interval = setInterval(obj.CustomMethod, delay);
                   obj.onmouseover = function () { clearInterval(interval); }
                   obj.onmouseout = function () { interval = setInterval(obj.CustomMethod, delay); }
               }
           }
</script>
<!--漂浮开始-->
 <DIV id=ad2 style="Z-INDEX: 5;position:relative">

  <a href=http://www.mamicode.com/‘PoliceHTk.aspx‘ target=‘_blank‘><!--漂浮结束-->
</DIV>
<script%20type="text/javascript" language="javascript">

    var ad2 = new AdMove("ad2");
    ad2.Run();
    //多组漂浮
 
</script>
<!-- 首页图片漂浮结束 -->