标题：[分享]搞破坏搭建者技巧五 广告的切换（建议高级用户）

以下内容为程序代码:

1 ＜style＞
2 BODY {
3 PADDING-BOTTOM: 0px; MARGIN: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px
4 }
5 UL {
6 PADDING-BOTTOM: 0px; MARGIN: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px
7 }
8 .container {
9 WIDTH: 948px; HEIGHT: 350px
10 }
11 .container A IMG {
12 WIDTH: 948px; HEIGHT: 350px
13 }
14 .container IMG {
15 BORDER-BOTTOM-STYLE: none; BORDER-RIGHT-STYLE: none; BORDER-TOP-STYLE: none; BORDER-LEFT-STYLE: none
16 }
17 .td_f A IMG {
18 PADDING-BOTTOM: 0px; MARGIN: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px
19 }
20 .num {
21 POSITION: absolute; WIDTH: 90px; FLOAT: right; TOP: 325px; LEFT: 850px}
22 .num LI {
23 TEXT-ALIGN: center; LINE-HEIGHT: 15px; LIST-STYLE-TYPE: none; MARGIN: 1px; WIDTH: 15px; FONT-FAMILY: Arial; BACKGROUND: url(http://192.168.1.190:800/Files/Program%20Files/WebBuilder/szjdhssy/img/jpg/flashbutton.gif) no-repeat -15px 0px; FLOAT: left; HEIGHT: 15px; COLOR: #86a2b8; FONT-SIZE: 12px; CURSOR: pointer
24 }
25 .num LI.on {
26 LINE-HEIGHT: 15px; WIDTH: 15px; BACKGROUND: url(http://192.168.1.190:800/Files/Program%20Files/WebBuilder/szjdhssy/img/jpg/flashbutton.gif) no-repeat; HEIGHT: 15px; COLOR: #ffffff
27 }
28 .more {
29 FLOAT: right
30 }
31 .more1 A {
32 TEXT-ALIGN: left; LINE-HEIGHT: 25px; MARGIN: 0px 0px 0px 10px; COLOR: #3373a3
33 }
34 ＜/style＞
35 ＜SCRIPT language=javascript＞
36 if(typeof(pgvMain) == 'function')
37 pgvMain();
38 ＜/SCRIPT＞
39 ＜SCRIPT＞
40 var gtopTab="one";
41 function $id(id){
42 return document.getElementById(id);
43 }
44 function changesTab(tab_id){
45 if (tab_id==gtopTab){
46 return;
47 }else{
48 $id(gtopTab).className="unselect";
49 $id(tab_id).className="select";
50 $id("tab_"+gtopTab).style.display="none";
51 $id("tab_"+tab_id).style.display="block";
52 gtopTab=tab_id;
53 }
54 }
55 ＜/SCRIPT＞
56 ＜SCRIPT type=text/javascript＞
57 var $ = function (id) {
58 return "string" == typeof id ? document.getElementById(id) : id;
59 };
60 var Extend = function(destination, source) {
61 for (var property in source) {
62 destination[property] = source[property];
63 }
64 return destination;
65 }
66 var CurrentStyle = function(element){
67 return element.currentStyle || document.defaultView.getComputedStyle(element, null);
68 }
69 var Bind = function(object, fun) {
70 var args = Array.prototype.slice.call(arguments).slice(2);
71 return function() {
72 return fun.apply(object, args.concat(Array.prototype.slice.call(arguments)));
73 }
74 }
75 var Tween = {
76 Quart: {
77 easeOut: function(t,b,c,d){
78 return -c * ((t=t/d-1)*t*t*t - 1) + b;
79 }
80 },
81 Back: {
82 easeOut: function(t,b,c,d,s){
83 if (s == undefined) s = 1.70158;
84 return c*((t=t/d-1)*t*((s+1)*t + s) + 1) + b;
85 }
86 },
87 Bounce: {
88 easeOut: function(t,b,c,d){
89 if ((t/=d) ＜ (1/2.75)) {
90 return c*(7.5625*t*t) + b;
91 } else if (t ＜ (2/2.75)) {
92 return c*(7.5625*(t-=(1.5/2.75))*t + .75) + b;
93 } else if (t ＜ (2.5/2.75)) {
94 return c*(7.5625*(t-=(2.25/2.75))*t + .9375) + b;
95 } else {
96 return c*(7.5625*(t-=(2.625/2.75))*t + .984375) + b;
97 }
98 }
99 }
100 }
101 //容器对象,滑动对象,切换数量
102 var SlideTrans = function(container, slider, count, options) {
103 this._slider = $(slider);
104 this._container = $(container);//容器对象
105 this._timer = null;//定时器
106 this._count = Math.abs(count);//切换数量
107 this._target = 0;//目标值
108 this._t = this._b = this._c = 0;//tween参数
109
110 this.Index = 0;//当前索引
111
112 this.SetOptions(options);
113
114 this.Auto = !!this.options.Auto;
115 this.Duration = Math.abs(this.options.Duration);
116 this.Time = Math.abs(this.options.Time);
117 this.Pause = Math.abs(this.options.Pause);
118 this.Tween = this.options.Tween;
119 this.onStart = this.options.onStart;
120 this.onFinish = this.options.onFinish;
121
122 var bVertical = !!this.options.Vertical;
123 this._css = bVertical ? "top" : "left";//方向
124
125 //样式设置
126 var p = CurrentStyle(this._container).position;
127 p == "relative" || p == "absolute" || (this._container.style.position = "relative");
128 this._container.style.overflow = "hidden";
129 this._slider.style.position = "absolute";
130
131 this.Change = this.options.Change ? this.options.Change :
132 this._slider[bVertical ? "offsetHeight" : "offsetWidth"] / this._count;
133 };
134 SlideTrans.prototype = {
135 //设置默认属性
136 SetOptions: function(options) {
137 this.options = {//默认值
138 Vertical: true,//是否垂直方向（方向不能改）
139 Auto: true,//是否自动
140 Change: 0,//改变量
141 Duration: 50,//滑动持续时间
142 Time: 10,//滑动延时
143 Pause: 4000,//停顿时间(Auto为true时有效)
144 onStart: function(){},//开始转换时执行
145 onFinish: function(){},//完成转换时执行
146 Tween: Tween.Quart.easeOut//tween算子
147 };
148 Extend(this.options, options || {});
149 },
150 //开始切换
151 Run: function(index) {
152 //修正index
153 index == undefined && (index = this.Index);
154 index ＜ 0 && (index = this._count - 1) || index ＞= this._count && (index = 0);
155 //设置参数
156 this._target = -Math.abs(this.Change) * (this.Index = index);
157 this._t = 0;
158 this._b = parseInt(CurrentStyle(this._slider)[this.options.Vertical ? "top" : "left"]);
159 this._c = this._target - this._b;
160
161 this.onStart();
162 this.Move();
163 },
164 //移动
165 Move: function() {
166 clearTimeout(this._timer);
167 //未到达目标继续移动否则进行下一次滑动
168 if (this._c && this._t ＜ this.Duration) {
169 this.MoveTo(Math.round(this.Tween(this._t++, this._b, this._c, this.Duration)));
170 this._timer = setTimeout(Bind(this, this.Move), this.Time);
171 }else{
172 this.MoveTo(this._target);
173 this.Auto && (this._timer = setTimeout(Bind(this, this.Next), this.Pause));
174 }
175 },
176 //移动到
177 MoveTo: function(i) {
178 this._slider.style[this._css] = i + "px";
179 },
180 //下一个
181 Next: function() {
182 this.Run(++this.Index);
183 },
184 //上一个
185 Previous: function() {
186 this.Run(--this.Index);
187 },
188 //停止
189 Stop: function() {
190 clearTimeout(this._timer); this.MoveTo(this._target);
191 }
192 };
193 ＜/SCRIPT＞
194 ＜BODY＞
195 ＜DIV id=idContainer2 class=container＞
196 ＜TABLE id=idSlider2 border=0 cellSpacing=0 cellPadding=0＞
197 ＜TBODY＞
198 ＜TR＞
199 ＜TD class=td_f＞＜a href="#"＞＜img src="http://192.168.1.190:800/Files/Program%20Files/WebBuilder/szjdhssy/img/jpg/gg1.jpg"＞＜/a＞＜/TD＞
200 ＜TD class=td_f＞＜a href="#"＞＜img src="http://192.168.1.190:800/Files/Program%20Files/WebBuilder/szjdhssy/img/jpg/gg2.jpg"＞＜/a＞＜/TD＞
201 ＜TD class=td_f＞＜A href="#"＞＜IMG src="http://192.168.1.190:800/Files/Program%20Files/WebBuilder/szjdhssy/img/jpg/gg3.jpg"＞＜/A＞＜/TD＞
202 ＜TD class=td_f＞＜A href="#"＞＜IMG src="http://192.168.1.190:800/Files/Program%20Files/WebBuilder/szjdhssy/img/jpg/gg4.jpg"＞＜/A＞＜/TD＞
203 ＜TD class=td_f＞＜A href="#"＞＜IMG src="http://192.168.1.190:800/Files/Program%20Files/WebBuilder/szjdhssy/img/jpg/gg5.jpg"＞＜/A＞＜/TD＞
204 ＜/TR＞
205 ＜/TBODY＞
206 ＜/TABLE＞
207 ＜UL id=idNum class=num＞
208 ＜/UL＞
209 ＜/DIV＞
210 ＜SCRIPT＞
211 //new SlideTrans("idContainer", "idSlider", 3).Run();
212 ///////////////////////////////////////////////////////////
213 var forEach = function(array, callback, thisObject){
214 if(array.forEach){
215 array.forEach(callback, thisObject);
216 }else{
217 for (var i = 0, len = array.length; i ＜ len; i++) { callback.call(thisObject, array[i], i, array); }
218 }
219 }
220 var st = new SlideTrans("idContainer2", "idSlider2", 5, { Vertical: false });
221 var nums = [];
222 //插入数字
223 for(var i = 0, n = st._count - 1; i ＜= n;){
224 (nums[i] = $("idNum").appendChild(document.createElement("li"))).innerHTML = ++i;
225 }
226 forEach(nums, function(o, i){
227 o.onmouseover = function(){ o.className = "on"; st.Auto = false; st.Run(i); }
228 o.onmouseout = function(){ o.className = ""; st.Auto = true; st.Run(); }
229 })
230 //设置按钮样式
231 st.onStart = function(){
232 forEach(nums, function(o, i){ o.className = st.Index == i ? "on" : ""; })
233 }
234 //$("idAuto").onclick = function(){
235 //if(st.Auto){
236 //st.Auto = false; st.Stop(); this.value = "自动";
237 //}else{
238 //st.Auto = true; st.Run(); this.value = "停止";
239 //}
240 //}
241 //$("idNext").onclick = function(){ st.Next(); }
242 //$("idPre").onclick = function(){ st.Previous(); }
243 //$("idTween").onchange = function(){
244 //switch (parseInt(this.value)){
245 //case 2 :
246 //st.Tween = Tween.Bounce.easeOut; break;
247 //case 1 :
248 //st.Tween = Tween.Back.easeOut; break;
249 //default :
250 //st.Tween = Tween.Quart.easeOut;
251 //}
252 //}
253 st.Run();
254 ＜/SCRIPT＞