JS三图横向平滑切换代码轮播滚动特效

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以下是 JS三图横向平滑切换代码轮播滚动特效的示例演示效果:

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部分效果截图:

HTML代码(index.html):

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<meta name="keywords" content="JS代码,焦点图,JS广告代码,JS特效代码" />
<meta name="description" content="此代码内容为JS三图横向平滑切换代码" />
<title>JS三图横向平滑切换代码</title>
<link href="css/css.css" rel="stylesheet" type="text/css" />
<script language="JavaScript" type="text/javascript" src="js/prototype.js"></script>
<script language="JavaScript" type="text/javascript" src="js/effects.js"></script>
<script language="JavaScript" type="text/javascript" src="js/glider.js"></script>
</head>
<body>
<DIV align="center" >
<DIV class=feature id=my-glider>
<DIV class=scroller>
<DIV class=content>

<DIV class=section id=section1>
<A href="#" target="_blank"><IMG alt="标题" src="img/citykidssite.jpg"></A>
<A href="#" target="_blank"><IMG alt="标题" src="img/gc-general.jpg"></A>
<A href="#" target="_blank"><IMG alt="标题" src="img/groups.jpg"></A>
</DIV>

<DIV class=section id=section2>
<A href="#" target="_blank"><IMG alt="标题" src="img/membership_seminar.jpg"></A>
<A href="#" target="_blank"><IMG alt="标题" src="img/rhemacards.jpg"></A>
<A href="#" target="_blank"><IMG alt="标题" src="img/traks_classes.jpg"></A>
</DIV>

<DIV class=section id=section3>
<A href="#" target="_blank"><IMG alt="标题" src="img/audiocdsets.jpg"></A>
<A href="#" target="_blank"><IMG alt="标题" src="img/pwpsoftcover.jpg"></A>
<A href="#" target="_blank"><IMG alt="标题" src="img/citycompschool.jpg"></A>
</DIV>

<DIV class=section id=section4>
<A href="#" target="_blank"><IMG alt="标题" src="img/membership_seminar.jpg"></A>
<A href="#" target="_blank"><IMG alt="标题" src="img/rhemacards.jpg"></A>
<A href="#" target="_blank"><IMG alt="标题" src="img/traks_classes.jpg"></A>
</DIV>

</DIV>
</DIV>
<A id=prevLink onClick="my_glider.previous();return false;" href="#">Previous</A>&nbsp;
<A id=nextLink onClick="my_glider.next();return false" href="#">Next</A>
<SCRIPT language=javascript type=text/javascript>
	var my_glider = new Glider('my-glider', {duration:0.5});
</SCRIPT>
</DIV>

<p>感谢网友：Thomas　代码整理：<a href="#" target="_blank">标题</a>　
  <br />
    <br />
  ＊尊重他人劳动成果，转载请自觉注明出处！</p>
<p></p>
<p></p>
<p></p>
</div>
</body>
</html>

JS代码(effects.js):

/*--------------------------------------------------------------------------*/
var Effect ={
	_elementDoesNotExistError:{
	name:'ElementDoesNotExistError',message:'The specified DOM element does not exist,but is required for this effect to operate'}
,tagifyText:function(element){
	if(typeof Builder == 'undefined') throw("Effect.tagifyText requires including script.aculo.us' builder.js library");
	var tagifyStyle = 'position:relative';
	if(/MSIE/.test(navigator.userAgent) && !window.opera) tagifyStyle += ';
	zoom:1';
	element = $(element);
	$A(element.childNodes).each( function(child){
	if(child.nodeType==3){
	child.nodeValue.toArray().each( function(character){
	element.insertBefore( Builder.node('span',{
	style:tagifyStyle}
,character == ' ' ? String.fromCharCode(160):character),child);
}
);
	Element.remove(child);
}
}
);
}
,multiple:function(element,effect){
	var elements;
	if(((typeof element == 'object') || (typeof element == 'function')) && (element.length)) elements = element;
	else elements = $(element).childNodes;
	var options = Object.extend({
	speed:0.1,delay:0.0}
,arguments[2] ||{
}
);
	var masterDelay = options.delay;
	$A(elements).each( function(element,index){
	new effect(element,Object.extend(options,{
	delay:index * options.speed + masterDelay}
));
}
);
}
,PAIRS:{
	'slide':['SlideDown','SlideUp'],'blind':['BlindDown','BlindUp'],'appear':['Appear','Fade']}
,toggle:function(element,effect){
	element = $(element);
	effect = (effect || 'appear').toLowerCase();
	var options = Object.extend({
	queue:{
	position:'end',scope:(element.id || 'global'),limit:1}
}
,arguments[2] ||{
}
);
	Effect[element.visible() ? Effect.PAIRS[effect][1]:Effect.PAIRS[effect][0]](element,options);
}
}
;
	var Effect2 = Effect;
	// deprecated/* ------------- transitions ------------- */
Effect.Transitions ={
}
Effect.Transitions.linear = Prototype.K;
	Effect.Transitions.sinoidal = function(pos){
	return (-Math.cos(pos*Math.PI)/2) + 0.5;
}
Effect.Transitions.reverse = function(pos){
	return 1-pos;
}
Effect.Transitions.flicker = function(pos){
	return ((-Math.cos(pos*Math.PI)/4) + 0.75) + Math.random()/4;
}
Effect.Transitions.wobble = function(pos){
	return (-Math.cos(pos*Math.PI*(9*pos))/2) + 0.5;
}
Effect.Transitions.pulse = function(pos){
	return (Math.floor(pos*10) % 2 == 0 ? (pos*10-Math.floor(pos*10)):1-(pos*10-Math.floor(pos*10)));
}
Effect.Transitions.none = function(pos){
	return 0;
}
Effect.Transitions.full = function(pos){
	return 1;
}
/* ------------- core effects ------------- */
Effect.ScopedQueue = Class.create();
	Object.extend(Object.extend(Effect.ScopedQueue.prototype,Enumerable),{
	initialize:function(){
	this.effects = [];
	this.interval = null;
}
,_each:function(iterator){
	this.effects._each(iterator);
}
,add:function(effect){
	var timestamp = new Date().getTime();
	var position = (typeof effect.options.queue == 'string') ? effect.options.queue:effect.options.queue.position;
	switch(position){
	case 'front':// move unstarted effects after this effect this.effects.findAll(function(e){
	return e.state=='idle'}
).each( function(e){
	e.startOn += effect.finishOn;
	e.finishOn += effect.finishOn;
}
);
	break;
	case 'end':// start effect after last queued effect has finished timestamp = this.effects.pluck('finishOn').max() || timestamp;
	break;
}
effect.startOn += timestamp;
	effect.finishOn += timestamp;
	if(!effect.options.queue.limit || (this.effects.length < effect.options.queue.limit)) this.effects.push(effect);
	if(!this.interval) this.interval = setInterval(this.loop.bind(this),40);
}
,remove:function(effect){
	this.effects = this.effects.reject(function(e){
	return e==effect}
);
	if(this.effects.length == 0){
	clearInterval(this.interval);
	this.interval = null;
}
}
,loop:function(){
	var timePos = new Date().getTime();
	this.effects.invoke('loop',timePos);
}
}
);
	Effect.Queues ={
	instances:$H(),get:function(queueName){
	if(typeof queueName != 'string') return queueName;
	if(!this.instances[queueName]) this.instances[queueName] = new Effect.ScopedQueue();
	return this.instances[queueName];
}
}
Effect.Queue = Effect.Queues.get('global');
	Effect.DefaultOptions ={
	transition:Effect.Transitions.sinoidal,duration:1.0,// seconds fps:25.0,// max. 25fps due to Effect.Queue implementation sync:false,// true for combining from:0.0,to:1.0,delay:0.0,queue:'parallel'}
Effect.Base = function(){
}
;
	Effect.Base.prototype ={
	position:null,start:function(options){
	this.options = Object.extend(Object.extend({
}
,Effect.DefaultOptions),options ||{
}
);
	this.currentFrame = 0;
	this.state = 'idle';
	this.startOn = this.options.delay*1000;
	this.finishOn = this.startOn + (this.options.duration*1000);
	this.event('beforeStart');
	if(!this.options.sync) Effect.Queues.get(typeof this.options.queue == 'string' ? 'global':this.options.queue.scope).add(this);
}
,loop:function(timePos){
	if(timePos >= this.startOn){
	if(timePos >= this.finishOn){
	this.render(1.0);
	this.cancel();
	this.event('beforeFinish');
	if(this.finish) this.finish();
	this.event('afterFinish');
	return;
}
var pos = (timePos - this.startOn) / (this.finishOn - this.startOn);
	var frame = Math.round(pos * this.options.fps * this.options.duration);
	if(frame > this.currentFrame){
	this.render(pos);
	this.currentFrame = frame;
}
}
}
,render:function(pos){
	if(this.state == 'idle'){
	this.state = 'running';
	this.event('beforeSetup');
	if(this.setup) this.setup();
	this.event('afterSetup');
}
if(this.state == 'running'){
	if(this.options.transition) pos = this.options.transition(pos);
	pos *= (this.options.to-this.options.from);
	pos += this.options.from;
	this.position = pos;
	this.event('beforeUpdate');
	if(this.update) this.update(pos);
	this.event('afterUpdate');
}
}
,cancel:function(){
	if(!this.options.sync) Effect.Queues.get(typeof this.options.queue == 'string' ? 'global':this.options.queue.scope).remove(this);
	this.state = 'finished';
}
,event:function(eventName){
	if(this.options[eventName + 'Internal']) this.options[eventName + 'Internal'](this);
	if(this.options[eventName]) this.options[eventName](this);
}
,inspect:function(){
	return '#<Effect:' + $H(this).inspect() + ',options:' + $H(this.options).inspect() + '>';
}
}
Effect.Parallel = Class.create();
	Object.extend(Object.extend(Effect.Parallel.prototype,Effect.Base.prototype),{
	initialize:function(effects){
	this.effects = effects || [];
	this.start(arguments[1]);
}
,update:function(position){
	this.effects.invoke('render',position);
}
,finish:function(position){
	this.effects.each( function(effect){
	effect.render(1.0);
	effect.cancel();
	effect.event('beforeFinish');
	if(effect.finish) effect.finish(position);
	effect.event('afterFinish');
}
);
}
}
);
	Effect.Opacity = Class.create();
	Object.extend(Object.extend(Effect.Opacity.prototype,Effect.Base.prototype),{
	initialize:function(element){
	this.element = $(element);
	if(!this.element) throw(Effect._elementDoesNotExistError);
	// make this work on IE on elements without 'layout' if(/MSIE/.test(navigator.userAgent) && !window.opera && (!this.element.currentStyle.hasLayout)) this.element.setStyle({
	zoom:1}
);
	var options = Object.extend({
	from:this.element.getOpacity() || 0.0,to:1.0}
,arguments[1] ||{
}
);
	this.start(options);
}
,update:function(position){
	this.element.setOpacity(position);
}
}
);
	Effect.Move = Class.create();
	Object.extend(Object.extend(Effect.Move.prototype,Effect.Base.prototype),{
	initialize:function(element){
	this.element = $(element);
	if(!this.element) throw(Effect._elementDoesNotExistError);
	var options = Object.extend({
	x:0,y:0,mode:'relative'}
,arguments[1] ||{
}
);
	this.start(options);
}
,setup:function(){
	// Bug in Opera:Opera returns the "real" position of a static element or // relative element that does not have top/left explicitly set. // ==> Always set top and left for position relative elements in your stylesheets // (to 0 if you do not need them) this.element.makePositioned();
	this.originalLeft = parseFloat(this.element.getStyle('left') || '0');
	this.originalTop = parseFloat(this.element.getStyle('top') || '0');
	if(this.options.mode == 'absolute'){
	// absolute movement,so we need to calc deltaX and deltaY this.options.x = this.options.x - this.originalLeft;
	this.options.y = this.options.y - this.originalTop;
}
}
,update:function(position){
	this.element.setStyle({
	left:Math.round(this.options.x * position + this.originalLeft) + 'px',top:Math.round(this.options.y * position + this.originalTop) + 'px'}
);
}
}
);
	// for backwards compatibilityEffect.MoveBy = function(element,toTop,toLeft){
	return new Effect.Move(element,Object.extend({
	x:toLeft,y:toTop}
,arguments[3] ||{
}
));
}
;
	Effect.Scale = Class.create();
	Object.extend(Object.extend(Effect.Scale.prototype,Effect.Base.prototype),{
	initialize:function(element,percent){
	this.element = $(element);
	if(!this.element) throw(Effect._elementDoesNotExistError);
	var options = Object.extend({
	scaleX:true,scaleY:true,scaleContent:true,scaleFromCenter:false,scaleMode:'box',// 'box' or 'contents' or{
}
with provided values scaleFrom:100.0,scaleTo:percent}
,arguments[2] ||{
}
);
	this.start(options);
}
,setup:function(){
	this.restoreAfterFinish = this.options.restoreAfterFinish || false;
	this.elementPositioning = this.element.getStyle('position');
	this.originalStyle ={
}
;
	['top','left','width','height','fontSize'].each( function(k){
	this.originalStyle[k] = this.element.style[k];
}
.bind(this));
	this.originalTop = this.element.offsetTop;
	this.originalLeft = this.element.offsetLeft;
	var fontSize = this.element.getStyle('font-size') || '100%';
	['em','px','%','pt'].each( function(fontSizeType){
	if(fontSize.indexOf(fontSizeType)>0){
	this.fontSize = parseFloat(fontSize);
	this.fontSizeType = fontSizeType;
}
}
.bind(this));
	this.factor = (this.options.scaleTo - this.options.scaleFrom)/100;
	this.dims = null;
	if(this.options.scaleMode=='box') this.dims = [this.element.offsetHeight,this.element.offsetWidth];
	if(/^content/.test(this.options.scaleMode)) this.dims = [this.element.scrollHeight,this.element.scrollWidth];
	if(!this.dims) this.dims = [this.options.scaleMode.originalHeight,this.options.scaleMode.originalWidth];
}
,update:function(position){
	var currentScale = (this.options.scaleFrom/100.0) + (this.factor * position);
	if(this.options.scaleContent && this.fontSize) this.element.setStyle({
	fontSize:this.fontSize * currentScale + this.fontSizeType}
);
	this.setDimensions(this.dims[0] * currentScale,this.dims[1] * currentScale);
}
,finish:function(position){
	if (this.restoreAfterFinish) this.element.setStyle(this.originalStyle);
}
,setDimensions:function(height,width){
	var d ={
}
;
	if(this.options.scaleX) d.width = Math.round(width) + 'px';
	if(this.options.scaleY) d.height = Math.round(height) + 'px';
	if(this.options.scaleFromCenter){
	var topd = (height - this.dims[0])/2;
	var leftd = (width - this.dims[1])/2;
	if(this.elementPositioning == 'absolute'){
	if(this.options.scaleY) d.top = this.originalTop-topd + 'px';
	if(this.options.scaleX) d.left = this.originalLeft-leftd + 'px';
}
else{
	if(this.options.scaleY) d.top = -topd + 'px';
	if(this.options.scaleX) d.left = -leftd + 'px';
}
}
this.element.setStyle(d);
}
}
);
	Effect.Highlight = Class.create();
	Object.extend(Object.extend(Effect.Highlight.prototype,Effect.Base.prototype),{
	initialize:function(element){
	this.element = $(element);
	if(!this.element) throw(Effect._elementDoesNotExistError);
	var options = Object.extend({
	startcolor:'#ffff99'}
,arguments[1] ||{
}
);
	this.start(options);
}
,setup:function(){
	// Prevent executing on elements not in the layout flow if(this.element.getStyle('display')=='none'){
	this.cancel();
	return;
}
// Disable background image during the effect this.oldStyle ={
	backgroundImage:this.element.getStyle('background-image')}
;
	this.element.setStyle({
	backgroundImage:'none'}
);
	if(!this.options.endcolor) this.options.endcolor = this.element.getStyle('background-color').parseColor('#ffffff');
	if(!this.options.restorecolor) this.options.restorecolor = this.element.getStyle('background-color');
	// init color calculations this._base = $R(0,2).map(function(i){
	return parseInt(this.options.startcolor.slice(i*2+1,i*2+3),16)}
.bind(this));
	this._delta = $R(0,2).map(function(i){
	return parseInt(this.options.endcolor.slice(i*2+1,i*2+3),16)-this._base[i]}
.bind(this));
}
,update:function(position){
	this.element.setStyle({
	backgroundColor:$R(0,2).inject('#',function(m,v,i){
	return m+(Math.round(this._base[i]+(this._delta[i]*position)).toColorPart());
}
.bind(this))}
);
}
,finish:function(){
	this.element.setStyle(Object.extend(this.oldStyle,{
	backgroundColor:this.options.restorecolor}
));
}
}
);
	Effect.ScrollTo = Class.create();
	Object.extend(Object.extend(Effect.ScrollTo.prototype,Effect.Base.prototype),{
	initialize:function(element){
	this.element = $(element);
	this.start(arguments[1] ||{
}
);
}
,setup:function(){
	Position.prepare();
	var offsets = Position.cumulativeOffset(this.element);
	if(this.options.offset) offsets[1] += this.options.offset;
	var max = window.innerHeight ? window.height - window.innerHeight:document.body.scrollHeight - (document.documentElement.clientHeight ? document.documentElement.clientHeight:document.body.clientHeight);
	this.scrollStart = Position.deltaY;
	this.delta = (offsets[1] > max ? max:offsets[1]) - this.scrollStart;
}
,update:function(position){
	Position.prepare();
	window.scrollTo(Position.deltaX,this.scrollStart + (position*this.delta));
}
}
);

JS代码(glider.js):

Glider = Class.create();
	Object.extend(Object.extend(Glider.prototype,Abstract.prototype),{
	initialize:function(wrapper,options){
	this.scrolling = false;
	this.wrapper = $(wrapper);
	this.scroller = this.wrapper.down('div.scroller');
	this.sections = this.wrapper.getElementsBySelector('div.section');
	this.options = Object.extend({
	duration:1.0,frequency:3}
,options ||{
}
);
	this.sections.each( function(section,index){
	section._index = index;
}
);
	this.events ={
	click:this.click.bind(this)}
;
	this.addObservers();
	if(this.options.initialSection) this.moveTo(this.options.initialSection,this.scroller,{
	duration:this.options.duration}
);
	// initialSection should be the id of the section you want to show up on loadif(this.options.autoGlide) this.start();
}
,addObservers:function(){
	var controls = this.wrapper.getElementsBySelector('div.controls a');
	controls.invoke('observe','click',this.events.click);
}
,click:function(event){
	this.stop();
	var element = Event.findElement(event,'a');
	if (this.scrolling) this.scrolling.cancel();
	this.moveTo(element.href.split("#")[1],this.scroller,{
	duration:this.options.duration}
);
	Event.stop(event);
}
,moveTo:function(element,container,options){
	this.current = $(element);
	Position.prepare();
	var containerOffset = Position.cumulativeOffset(container),elementOffset = Position.cumulativeOffset($(element));
	this.scrolling= new Effect.SmoothScroll(container,{
	duration:options.duration,x:(elementOffset[0]-containerOffset[0]),y:(elementOffset[1]-containerOffset[1])}
);
	return false;
}
,next:function(){
	if (this.current){
	var currentIndex = this.current._index;
	var nextIndex = (this.sections.length - 1 == currentIndex) ? 0:currentIndex + 1;
}
else var nextIndex = 1;
	this.moveTo(this.sections[nextIndex],this.scroller,{
	duration:this.options.duration}
);
}
,previous:function(){
	if (this.current){
	var currentIndex = this.current._index;
	var prevIndex = (currentIndex == 0) ? this.sections.length - 1:currentIndex - 1;
}
else var prevIndex = this.sections.length - 1;
	this.moveTo(this.sections[prevIndex],this.scroller,{
	duration:this.options.duration}
);
}
,stop:function(){
	clearTimeout(this.timer);
}
,start:function(){
	this.periodicallyUpdate();
}
,periodicallyUpdate:function(){
	if (this.timer != null){
	clearTimeout(this.timer);
	this.next();
}
this.timer = setTimeout(this.periodicallyUpdate.bind(this),this.options.frequency*1000);
}
}
);
	Effect.SmoothScroll = Class.create();
	Object.extend(Object.extend(Effect.SmoothScroll.prototype,Effect.Base.prototype),{
	initialize:function(element){
	this.element = $(element);
	var options = Object.extend({
	x:0,y:0,mode:'absolute'}
,arguments[1] ||{
}
);
	this.start(options);
}
,setup:function(){
	if (this.options.continuous && !this.element._ext ){
	this.element.cleanWhitespace();
	this.element._ext=true;
	this.element.appendChild(this.element.firstChild);
}
this.originalLeft=this.element.scrollLeft;
	this.originalTop=this.element.scrollTop;
	if(this.options.mode == 'absolute'){
	this.options.x -= this.originalLeft;
	this.options.y -= this.originalTop;
}
}
,update:function(position){
	this.element.scrollLeft = this.options.x * position + this.originalLeft;
	this.element.scrollTop = this.options.y * position + this.originalTop;
}
}
);

CSS代码(css.css):

*{PADDING-RIGHT:0px;PADDING-LEFT:0px;PADDING-BOTTOM:0px;MARGIN:0px;PADDING-TOP:0px}
BODY{BACKGROUND:url(/images/bg-body.gif) #fff repeat-x;TEXT-ALIGN:center;font-family:Arial,Helvetica,sans-serif;font-size:12px;padding:10px;}
A{TEXT-DECORATION:none}
.feature{MARGIN-TOP:2em;WIDTH:485px;POSITION:relative}
.feature H2{MARGIN:20px 0px 7px;text-align:left;text-indent:10px;}
.feature A IMG{BORDER-RIGHT:#ccc 1px solid;PADDING-RIGHT:1px;BORDER-TOP:#ccc 1px solid;PADDING-LEFT:1px;PADDING-BOTTOM:1px;MARGIN:0px;BORDER-LEFT:#ccc 1px solid;PADDING-TOP:1px;BORDER-BOTTOM:#ccc 1px solid}
.feature A:hover IMG{BORDER-RIGHT:#2388ff 1px solid;BORDER-TOP:#2388ff 1px solid;BACKGROUND:#ffc;BORDER-LEFT:#2388ff 1px solid;BORDER-BOTTOM:#2388ff 1px solid}
#my-glider{POSITION:relative}
.scroller{OVERFLOW:hidden;WIDTH:485px;HEIGHT:104px}
.scroller .section{FLOAT:left;OVERFLOW:hidden;WIDTH:485px;WHITE-SPACE:nowrap;HEIGHT:104px;TEXT-ALIGN:center}
.scroller .content{WIDTH:10000px}
#prevLink{DISPLAY:block;OVERFLOW:hidden;WIDTH:20px;TEXT-INDENT:-99999px;POSITION:absolute;TOP:35%;HEIGHT:20px;background-image:url(../img/glider-arrows.png);background-repeat:no-repeat;}
#nextLink{DISPLAY:block;OVERFLOW:hidden;WIDTH:20px;TEXT-INDENT:-99999px;POSITION:absolute;TOP:35%;HEIGHT:20px;background-image:url(../img/glider-arrows.png);background-repeat:no-repeat;}
#prevLink:hover{BACKGROUND-POSITION:0px -19px}
#nextLink{BACKGROUND-POSITION:-19px 0px}
#nextLink:hover{BACKGROUND-POSITION:-19px -19px}
#prevLink{LEFT:-18px}
#nextLink{RIGHT:-18px}

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