js实现图片3D轮播效果

3D的图片轮播效果很炫，写到这里只是为了不丢代码，不为别的。

效果预览：

html代码：

ul#bcty365_nav{padding-left:50px; margin-bottom:10px; border-bottom:2px solid #ccc; overflow:hidden; _zoom:1;}
ul#bcty365_nav li{float:left; display:inline; margin:10px;}
ul#bcty365_nav li a{display:block;color:#000000; font-size:16px;}
ul#bcty365_nav li a,#wimoban_p,#wimoban_p a{ font-family:"微软雅黑";}
ul#bcty365_nav li a:hover,#wimoban_p a:hover{color:red;}
 

*{margin:0;padding:0;list-style-type:none;}
a,img{border:0;}
body{font:12px/180% Arial, Helvetica, sans-serif,"新宋体";}

#focus_Box{position:relative;width:710px;height:500px;margin:20px auto;}
#focus_Box ul{position:relative;width:710px;height:500px}
#focus_Box li{z-index:0;position:absolute; width:0px;background:#787878;height:0px;top:146px;cursor:pointer;left:377px;border-radius:4px;box-shadow:1px 1px 12px rgba(200, 200, 200, 1)}
#focus_Box li img{width:100%;background:url(../img/3D轮播效果/loading.gif) no-repeat center 50%;height:100%;vertical-align:top}
#focus_Box li p{position:absolute;left:0;bottom:0px;width:100%;height:40px;line-height:40px;background:url(images/float-bg.png) repeat;text-indent:8px;color:#fff;}
#focus_Box li p span{display:inline-block;width:70%;height:40px;overflow:hidden;}
#focus_Box .prev,#focus_Box .next{display:block;z-index:100;overflow:hidden;cursor:pointer;position:absolute;width:52px;height:52px;top:131px;}

#focus_Box .prev:hover{background-position:left top;}
#focus_Box .next:hover{background-position:right top;}




  
  
 

 

 
 
 
 

 
 
 
 

 
 
 
 

 
  
 
 

 
 
 
 

js代码：

function ZoomPic ()
{
 this.initialize.apply(this, arguments) 
}
ZoomPic.prototype = 
{
 initialize : function (id)
 {
 var _this = this;
 this.wrap = typeof id === "string" ? document.getElementById(id) : id;
 this.oUl = this.wrap.getElementsByTagName("ul")[0];
 this.aLi = this.wrap.getElementsByTagName("li");
 this.prev = this.wrap.getElementsByTagName("span")[0];
 this.next = this.wrap.getElementsByTagName("span")[1];
 this.timer = 1000;
 this.aSort = [];
 this.iCenter = 2;
 this._doPrev = function () {return _this.doPrev.apply(_this)};
 this._donext = function () {return _this.doNext.apply(_this)};
 this.options = [
 
 {width:365, height:252, top:40, left:0, zIndex:1},
 {width:405, height:280, top:20, left:60, zIndex:2},
 {width:445, height:308, top:0, left:130, zIndex:3},
 {width:405, height:280, top:20, left:240, zIndex:2},
 {width:366, height:252, top:40, left:345, zIndex:1},
 ];
 for (var i = 0; i < this.aLi.length; i++) this.aSort[i] = this.aLi[i];
 this.aSort.unshift(this.aSort.pop());
 this.setUp();
 this.addEvent(this.prev, "click", this._doPrev);
 this.addEvent(this.next, "click", this._doNext);
 this.doImgClick(); 
 this.timer = setInterval(function ()
 {
 _this.donext() 
 }, 3000); 
 this.wrap.onmouseover = function ()
 {
 clearInterval(_this.timer) 
 };
 this.wrap.onmouseout = function ()
 {
 _this.timer = setInterval(function ()
 {
 _this.donext() 
 }, 3000); 
 }
 },
 doPrev : function ()
 {
 this.aSort.unshift(this.aSort.pop());
 this.setUp()
 },
 donext : function ()
 {
 this.aSort.push(this.aSort.shift());
 this.setUp()
 },
 doImgClick : function ()
 {
 var _this = this;
 for (var i = 0; i < this.aSort.length; i++)
 {
 this.aSort[i].onclick = function ()
 {
 if (this.index > _this.iCenter)
 {
  for (var i = 0; i < this.index - _this.iCenter; i++) _this.aSort.push(_this.aSort.shift());
  _this.setUp()
 }
 else if(this.index < _this.iCenter)
 {
  for (var i = 0; i < _this.iCenter - this.index; i++) _this.aSort.unshift(_this.aSort.pop());
  _this.setUp()
 }
 }
 }
 },
 setUp : function ()
 {
 var _this = this;
 var i = 0;
 for (i = 0; i < this.aSort.length; i++) this.oUl.appendChild(this.aSort[i]);
 for (i = 0; i < this.aSort.length; i++)
 {
 this.aSort[i].index = i;
 if (i < 5)
 {
 this.css(this.aSort[i], "display", "block");
 this.doMove(this.aSort[i], this.options[i], function ()
 {
  _this.doMove(_this.aSort[_this.iCenter].getElementsByTagName("img")[0], {opacity:100}, function ()
  {
  _this.doMove(_this.aSort[_this.iCenter].getElementsByTagName("img")[0], {opacity:100}, function ()
  {
  _this.aSort[_this.iCenter].onmouseover = function ()
  {
  _this.doMove(this.getElementsByTagName("div")[0], {bottom:0})
  };
  _this.aSort[_this.iCenter].onmouseout = function ()
  {
  _this.doMove(this.getElementsByTagName("div")[0], {bottom:-100})
  }
  })
  })
 });
 }
 else
 {
 this.css(this.aSort[i], "display", "none");
 this.css(this.aSort[i], "width", 0);
 this.css(this.aSort[i], "height", 0);
 this.css(this.aSort[i], "top", 37);
 this.css(this.aSort[i], "left", this.oUl.offsetWidth / 2)
 }
 if (i < this.iCenter || i > this.iCenter)
 {
 this.css(this.aSort[i].getElementsByTagName("img")[0], "opacity", 100)
 this.aSort[i].onmouseover = function ()
 {
  _this.doMove(this.getElementsByTagName("img")[0], {opacity:100}) 
 };
 this.aSort[i].onmouseout = function ()
 {
  _this.doMove(this.getElementsByTagName("img")[0], {opacity:100})
 };
 this.aSort[i].onmouseout();
 }
 else
 {
 this.aSort[i].onmouseover = this.aSort[i].onmouseout = null
 }
 } 
 },
 addEvent : function (oElement, sEventType, fnHandler)
 {
 return oElement.addEventListener ? oElement.addEventListener(sEventType, fnHandler, false) : oElement.attachEvent("on" + sEventType, fnHandler)
 },
 css : function (oElement, attr, value)
 {
 if (arguments.length == 2)
 {
 return oElement.currentStyle ? oElement.currentStyle[attr] : getComputedStyle(oElement, null)[attr]
 }
 else if (arguments.length == 3)
 {
 switch (attr)
 {
 case "width":
 case "height":
 case "top":
 case "left":
 case "bottom":
  oElement.style[attr] = value + "px";
  break;
 case "opacity" :
  oElement.style.filter = "alpha(opacity=" + value + ")";
  oElement.style.opacity = value / 100;
  break;
 default :
  oElement.style[attr] = value;
  break
 } 
 }
 },
 doMove : function (oElement, oAttr, fnCallBack)
 {
 var _this = this;
 clearInterval(oElement.timer);
 oElement.timer = setInterval(function ()
 {
 var bStop = true;
 for (var property in oAttr)
 {
 var iCur = parseFloat(_this.css(oElement, property));
 property == "opacity" && (iCur = parseInt(iCur.toFixed(2) * 100));
 var iSpeed = (oAttr[property] - iCur) / 5;
 iSpeed = iSpeed > 0 ? Math.ceil(iSpeed) : Math.floor(iSpeed);
 
 if (iCur != oAttr[property])
 {
  bStop = false;
  _this.css(oElement, property, iCur + iSpeed)
 }
 }
 if (bStop)
 {
 clearInterval(oElement.timer);
 fnCallBack && fnCallBack.apply(_this, arguments) 
 }
 }, 30)
 }
};
window.onload = function ()
{
 new ZoomPic("focus_Box");
};

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