使用javascript實現圖片3D輪播效果

html代碼：

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< head > < meta http-equiv = "Content-Type" content = "text/html; charset=utf-8" /> < title >js實現3D圖片逐張輪播幻燈片</ title > </ head > < body > < style > 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:"微軟雅黑";} ul#bcty365_nav li a:hover,#wimoban_p a:hover{color:red;} </ style > < style type = "text/css" > *{margin:0;padding:0;list-style-type:none;} a,img{border:0;} body{font:12px/180% Arial, Helvetica, sans-serif,"新宋體";} /* focus_Box */ #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輪播效果/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{background:url(../img/3D輪播效果/btn.png) left bottom no-repeat;left:0px} #focus_Box .next{background:url(../img/3D輪播效果/btn.png) right bottom no-repeat;right:0px} */ #focus_Box .prev:hover{background-position:left top;} #focus_Box .next:hover{background-position:right top;} /*#focus_Box a.imgs-scroll-btn{display:block;position:absolute;z-index:110;top:7px;right:15px;width:51px;height:23px;overflow:hidden;background:url(images/share-btn.png) no-repeat;text-indent:-999px;}*/ </ style > < script src = "../js/3D輪播效果/ZoomPic.js" ></ script > < div id = "focus_Box" >   < span class = "prev" > </ span >   < span class = "next" > </ span >   < ul >   < li >   < a href = "#" >< img width = "600" height = "450" src = "../img/3D輪播效果/cat1.jpg" /></ a >      </ li >   < li >   < a href = "#" >< img width = "600" height = "450" src = "../img/3D輪播效果/cat2.jpg" /></ a >      </ li >   < li >   < a href = "#" >< img width = "600" height = "450" src = "../img/3D輪播效果/cat3.jpg" /></ a >      </ li >   < li >   < a href = "#" >< img width = "600" height = "450" src = "../img/3D輪播效果/cat4.jpg" /></ a >       </ li >   < li >   < a href = "#" >< img width = "600" height = "450" src = "../img/3D輪播效果/cat5.jpg" /></ a >      </ li >   </ ul > </ div > < div style = "text-align:center;clear:both" > </ div > </ body > </ html >

js代碼：

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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:476, height:210, top:40, left:0, zIndex:1},   {width:426, height:250, top:20, left:50, zIndex:2},   {width:654, height:290, top:0, left:150, zIndex:3},   {width:426, height:250, top:20, left:480, zIndex:2},   {width:476, height:210, top:40, left:476, zIndex:1},*/   {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" ); };