淘宝轮播图

先上图一张：

  1 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"
  2 "http://www.w3.org/TR/html4/strict.dtd">
  3 
  4 <html xmlns="http://www.w3.org/1999/xhtml" lang="en">
  5     <head>
  6         <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
  7         <title>5.轮播图-杜鹏</title>
  8         <meta name="author" content="Administrator" />
  9         <!-- Date: 2014-12-16 -->
 10     <link href="miaov_style.css" rel="stylesheet" type="text/css" />
 11 
 12 <script>
 13 
 14 window.onload = function(){
 15     var aLi = document.getElementsByTagName('ol')[0].getElementsByTagName('li');
 16     var oUl = document.getElementsByTagName('ul')[0];
 17     var aLi2 = oUl.getElementsByTagName('li');
 18     var iNow = 0;
 19     var iNow2 = 0;
 20     var timer = null;
 21     
 22     for(var i=0;i<aLi.length;i++){
 23         aLi[i].index = i;
 24         aLi[i].onmouseover = function(){
 25             for(var i=0;i<aLi.length;i++){
 26                 aLi[i].className = '';
 27             };
 28             this.className = 'active';
 29             
 30             startMove(oUl,{'top' : -150*this.index});
 31             iNow = this.index;
 32             iNow2 = this.index;
 33             clearInterval(timer);
 34         };
 35         
 36         aLi[i].onmouseout = function(){
 37             timer = setInterval(toRun,2000);
 38         };
 39     }
 40     
 41     timer = setInterval(toRun,1000);
 42     
 43     function toRun(){
 44         if(iNow==aLi.length-1){
 45             iNow = 0;
 46             aLi2[0].style.position = 'relative';
 47             aLi2[0].style.top = 150 * aLi2.length + 'px';
 48         }
 49         else{
 50             iNow++;
 51         }
 52         
 53         iNow2++;
 54         //console.log( aLi2[0].offsetTop );
 55         
 56         for(var i=0;i<aLi.length;i++){
 57             aLi[i].className = '';
 58         };
 59         aLi[iNow].className = 'active';    
 60             
 61         startMove(oUl,{ top : -150 * iNow2},function(){
 62             
 63             clearInterval(timer);
 64             timer = setInterval(toRun,2000);
 65             
 66             if(iNow==0){
 67                 aLi2[0].style.position = 'static';
 68                 oUl.style.top = 0;
 69                 iNow2 = 0;
 70             }
 71             
 72         });
 73         
 74         console.log( iNow +'-'+ iNow2 )
 75     }
 76     
 77 };
 78 
 79 function startMove(obj,json,times,fx,fn){
 80         
 81         var iCur = {};
 82         var startTime = nowTime();
 83         
 84         if( typeof times == 'undefined' ){
 85             times = 400;
 86             fx = 'linear';
 87         }
 88         
 89         if( typeof times == 'string' ){
 90             if(typeof fx == 'function'){
 91                 fn = fx;
 92             }
 93             fx = times;
 94             times = 400;
 95         }
 96         else if(typeof times == 'function'){
 97             fn = times;
 98             times = 400;
 99             fx = 'linear';
100         }
101         else if(typeof times == 'number'){
102             if(typeof fx == 'function'){
103                 fn = fx;
104                 fx = 'linear';
105             }
106             else if(typeof fx == 'undefined'){
107                 fx = 'linear';
108             }
109         }
110         
111         for(var attr in json){
112             iCur[attr] = 0;
113             if( attr == 'opacity' ){
114                 iCur[attr] = Math.round(getStyle(obj,attr)*100);
115             }
116             else{
117                 iCur[attr] = parseInt(getStyle(obj,attr));
118             }
119         }
120         
121         clearInterval(obj.timer);
122         obj.timer = setInterval(function(){
123             
124             var changeTime = nowTime();
125             
126             //startTime changeTime
127             
128             var scale = 1-Math.max(0,startTime + times - changeTime)/times; //2000 - 0 -> 1-0 -> 0-1
129             
130             for(var attr in json){
131                 
132                 var value = Tween[fx](scale*times,iCur[attr],json[attr] - iCur[attr],times);
133                 
134                 if(attr == 'opacity'){
135                     obj.style.filter = 'alpha(opacity='+ value +')';
136                     obj.style.opacity = value/100;
137                 }
138                 else{
139                     obj.style[attr] = value + 'px';
140                 }
141                 
142             }
143             
144             if(scale == 1){
145                 clearInterval(obj.timer);
146                 if(fn){
147                     fn.call(obj);
148                 }
149             }
150             
151             
152         },30);
153         
154         
155         function nowTime(){
156             return (new Date()).getTime();
157         }
158         
159         
160     }
161     
162     function getStyle(obj,attr){
163         if(obj.currentStyle){
164             return obj.currentStyle[attr];
165         }
166         else{
167             return getComputedStyle(obj,false)[attr];
168         }
169     }
170     
171     
172     var Tween = {
173         linear: function (t, b, c, d){  //匀速
174             return c*t/d + b;
175         },
176         easeIn: function(t, b, c, d){  //加速曲线
177             return c*(t/=d)*t + b;
178         },
179         easeOut: function(t, b, c, d){  //减速曲线
180             return -c *(t/=d)*(t-2) + b;
181         },
182         easeBoth: function(t, b, c, d){  //加速减速曲线
183             if ((t/=d/2) < 1) {
184                 return c/2*t*t + b;
185             }
186             return -c/2 * ((--t)*(t-2) - 1) + b;
187         },
188         easeInStrong: function(t, b, c, d){  //加加速曲线
189             return c*(t/=d)*t*t*t + b;
190         },
191         easeOutStrong: function(t, b, c, d){  //减减速曲线
192             return -c * ((t=t/d-1)*t*t*t - 1) + b;
193         },
194         easeBothStrong: function(t, b, c, d){  //加加速减减速曲线
195             if ((t/=d/2) < 1) {
196                 return c/2*t*t*t*t + b;
197             }
198             return -c/2 * ((t-=2)*t*t*t - 2) + b;
199         },
200         elasticIn: function(t, b, c, d, a, p){  //正弦衰减曲线（弹动渐入）
201             if (t === 0) { 
202                 return b; 
203             }
204             if ( (t /= d) == 1 ) {
205                 return b+c; 
206             }
207             if (!p) {
208                 p=d*0.3; 
209             }
210             if (!a || a < Math.abs(c)) {
211                 a = c; 
212                 var s = p/4;
213             } else {
214                 var s = p/(2*Math.PI) * Math.asin (c/a);
215             }
216             return -(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) + b;
217         },
218         elasticOut: function(t, b, c, d, a, p){    //正弦增强曲线（弹动渐出）
219             if (t === 0) {
220                 return b;
221             }
222             if ( (t /= d) == 1 ) {
223                 return b+c;
224             }
225             if (!p) {
226                 p=d*0.3;
227             }
228             if (!a || a < Math.abs(c)) {
229                 a = c;
230                 var s = p / 4;
231             } else {
232                 var s = p/(2*Math.PI) * Math.asin (c/a);
233             }
234             return a*Math.pow(2,-10*t) * Math.sin( (t*d-s)*(2*Math.PI)/p ) + c + b;
235         },    
236         elasticBoth: function(t, b, c, d, a, p){
237             if (t === 0) {
238                 return b;
239             }
240             if ( (t /= d/2) == 2 ) {
241                 return b+c;
242             }
243             if (!p) {
244                 p = d*(0.3*1.5);
245             }
246             if ( !a || a < Math.abs(c) ) {
247                 a = c; 
248                 var s = p/4;
249             }
250             else {
251                 var s = p/(2*Math.PI) * Math.asin (c/a);
252             }
253             if (t < 1) {
254                 return - 0.5*(a*Math.pow(2,10*(t-=1)) * 
255                         Math.sin( (t*d-s)*(2*Math.PI)/p )) + b;
256             }
257             return a*Math.pow(2,-10*(t-=1)) * 
258                     Math.sin( (t*d-s)*(2*Math.PI)/p )*0.5 + c + b;
259         },
260         backIn: function(t, b, c, d, s){     //回退加速（回退渐入）
261             if (typeof s == 'undefined') {
262                s = 1.70158;
263             }
264             return c*(t/=d)*t*((s+1)*t - s) + b;
265         },
266         backOut: function(t, b, c, d, s){
267             if (typeof s == 'undefined') {
268                 s = 3.70158;  //回缩的距离
269             }
270             return c*((t=t/d-1)*t*((s+1)*t + s) + 1) + b;
271         }, 
272         backBoth: function(t, b, c, d, s){
273             if (typeof s == 'undefined') {
274                 s = 1.70158; 
275             }
276             if ((t /= d/2 ) < 1) {
277                 return c/2*(t*t*(((s*=(1.525))+1)*t - s)) + b;
278             }
279             return c/2*((t-=2)*t*(((s*=(1.525))+1)*t + s) + 2) + b;
280         },
281         bounceIn: function(t, b, c, d){    //弹球减振（弹球渐出）
282             return c - Tween['bounceOut'](d-t, 0, c, d) + b;
283         },       
284         bounceOut: function(t, b, c, d){
285             if ((t/=d) < (1/2.75)) {
286                 return c*(7.5625*t*t) + b;
287             } else if (t < (2/2.75)) {
288                 return c*(7.5625*(t-=(1.5/2.75))*t + 0.75) + b;
289             } else if (t < (2.5/2.75)) {
290                 return c*(7.5625*(t-=(2.25/2.75))*t + 0.9375) + b;
291             }
292             return c*(7.5625*(t-=(2.625/2.75))*t + 0.984375) + b;
293         },      
294         bounceBoth: function(t, b, c, d){
295             if (t < d/2) {
296                 return Tween['bounceIn'](t*2, 0, c, d) * 0.5 + b;
297             }
298             return Tween['bounceOut'](t*2-d, 0, c, d) * 0.5 + c*0.5 + b;
299         }
300     }
301 
302 
303 </script>
304 <script>
305 
306 /*window.onblur = function(){};
307 window.onfocus = function(){};
308 */
309 
310 </script>
311 </head>
312 
313 <body>
314 
315 <div id="play">
316     <div class="packet"><!-- 为了消除offsetXXX的兼容性问题 -->
317         <ol>
318             <li class="active">1</li>
319             <li>2</li>
320             <li>3</li>
321             <li>4</li>
322             <li>5</li>
323         </ol>
324         <ul>
325             <li><a href="#"><img src="images/1.jpg" alt="广告一" /></a></li>
326           <li><a href="#"><img src="images/2.jpg" alt="广告二" /></a></li>
327           <li><a href="#"><img src="images/3.jpg" alt="广告三" /></a></li>
328           <li><a href="#"><img src="images/4.jpg" alt="广告四" /></a></li>
329             <li><a href="#"><img src="images/5.jpg" alt="广告五" /></a></li>
330         </ul>
331     </div>
332 </div>
333 
334 </body>
335 </html>

css

 3 * { padding: 0; margin: 0; }
 4 li { list-style: none; }
 5 img { border: none; }
 6 
 7 body { background: #ecfaff; }
 8 
 9 #play {  470px; height: 150px; overflow: hidden; border: 1px solid #d8d8d8; margin: 100px auto 0; }
10 .packet { 470px; height: 150px; position: relative; overflow:-hidden;}
11 ol { position: absolute; right: 5px; bottom: 5px; z-index: 2; }
12 ol li { float: left; margin-right: 3px; display: inline; cursor: pointer; background: #fcf2cf; border: 1px solid #f47500; padding: 2px 6px; color: #d94b01; font-family: arial; font-size: 12px; }
13 .active { padding: 3px 8px; font-weight: bold; color: #ffffff; background: #ffb442; position: relative; bottom: 2px; }
14 
15 ul { position: absolute; top: 0px; left: 0px; z-index: 1; background:white;  470px; height: 150px; }
16 ul li { position:relative;  470px; height: 150px; top:0px; left:0px; }
17 ul img { float: left;  470px; height: 150px; }