來自騰訊的JavaScript圖片滑動_圖片特效特效

來自騰訊軟件頻道的JavaScript圖片滑動效果，純JS實現的，比較平滑的效果，像是使用了jQuery，很實用，拷貝代碼到你的網站就可以用了，非常方便，圖片大孝滑動速度、按鈕樣式、數字顏色大小都可以自已調整。

<HTML>
<HEAD>
<TITLE>來自騰訊的JavaScript圖片滑動</TITLE>
<style> 
BODY,UL  {
	PADDING-BOTTOM: 0px; MARGIN: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px
}
.container {
	WIDTH: 610px; HEIGHT: 205px
}
.container A IMG {
	WIDTH: 610px; HEIGHT: 205px
}
.container IMG {
	BORDER-BOTTOM-STYLE: none; BORDER-RIGHT-STYLE: none; BORDER-TOP-STYLE: none; BORDER-LEFT-STYLE: none
}
.td_f A IMG {
	PADDING-BOTTOM: 0px; MARGIN: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px
}
.num {
	POSITION: absolute; WIDTH: 90px; FLOAT: right; TOP: 180px; LEFT: 520px
}
.num LI {
	TEXT-ALIGN: center; LINE-HEIGHT: 15px; LIST-STYLE-TYPE: none; MARGIN: 1px; WIDTH: 15px; FONT-FAMILY: Arial; BACKGROUND: url(http://pc.qq.com/pc/images/flashbutton.gif) no-repeat -15px 0px; FLOAT: left; HEIGHT: 15px; COLOR: #86a2b8; FONT-SIZE: 12px; CURSOR: pointer
}
.num LI.on {
	LINE-HEIGHT: 15px; WIDTH: 15px; BACKGROUND: url(http://pc.qq.com/pc/images/flashbutton.gif) no-repeat; HEIGHT: 15px; COLOR: #ffffff
}
.more {
	FLOAT: right
}
.more1 A {
	TEXT-ALIGN: left; LINE-HEIGHT: 25px; MARGIN: 0px 0px 0px 10px; COLOR: #3373a3
}
</style>
<SCRIPT language=javascript>
        if(typeof(pgvMain) == 'function')
                pgvMain();
</SCRIPT>
<SCRIPT>
var gtopTab="one";
function $id(id){
	return document.getElementById(id);	
}
function changesTab(tab_id){
	if (tab_id==gtopTab){
		return;	
	}else{
		$id(gtopTab).className="unselect";	
		$id(tab_id).className="select";
		$id("tab_"+gtopTab).style.display="none";
		$id("tab_"+tab_id).style.display="block";
		gtopTab=tab_id;
	}
}
</SCRIPT>
<SCRIPT type=text/javascript>
var $ = function (id) {
	return "string" == typeof id ? document.getElementById(id) : id;
};
var Extend = function(destination, source) {
	for (var property in source) {
		destination[property] = source[property];
	}
	return destination;
}
var CurrentStyle = function(element){
	return element.currentStyle || document.defaultView.getComputedStyle(element, null);
}
var Bind = function(object, fun) {
	var args = Array.prototype.slice.call(arguments).slice(2);
	return function() {
		return fun.apply(object, args.concat(Array.prototype.slice.call(arguments)));
	}
}
var Tween = {
	Quart: {
		easeOut: function(t,b,c,d){
			return -c * ((t=t/d-1)*t*t*t - 1) + b;
		}
	},
	Back: {
		easeOut: function(t,b,c,d,s){
			if (s == undefined) s = 1.70158;
			return c*((t=t/d-1)*t*((s+1)*t + s) + 1) + b;
		}
	},
	Bounce: {
		easeOut: function(t,b,c,d){
			if ((t/=d) < (1/2.75)) {
				return c*(7.5625*t*t) + b;
			} else if (t < (2/2.75)) {
				return c*(7.5625*(t-=(1.5/2.75))*t + .75) + b;
			} else if (t < (2.5/2.75)) {
				return c*(7.5625*(t-=(2.25/2.75))*t + .9375) + b;
			} else {
				return c*(7.5625*(t-=(2.625/2.75))*t + .984375) + b;
			}
		}
	}
}
//容器對象,滑動對象,切換數量
var SlideTrans = function(container, slider, count, options) {
	this._slider = $(slider);
	this._container = $(container);//容器對象
	this._timer = null;//定時器
	this._count = Math.abs(count);//切換數量
	this._target = 0;//目標值
	this._t = this._b = this._c = 0;//tween參數
	
	this.Index = 0;//當前索引
	this.SetOptions(options);	
	this.Auto = !!this.options.Auto;
	this.Duration = Math.abs(this.options.Duration);
	this.Time = Math.abs(this.options.Time);
	this.Pause = Math.abs(this.options.Pause);
	this.Tween = this.options.Tween;
	this.onStart = this.options.onStart;
	this.onFinish = this.options.onFinish;
	var bVertical = !!this.options.Vertical;
	this._css = bVertical ? "top" : "left";//方向
	//樣式設置
	var p = CurrentStyle(this._container).position;
	p == "relative" || p == "absolute" || (this._container.style.position = "relative");
	this._container.style.overflow = "hidden";
	this._slider.style.position = "absolute";
	this.Change = this.options.Change ? this.options.Change :
	this._slider[bVertical ? "offsetHeight" : "offsetWidth"] / this._count;
};
SlideTrans.prototype = {
  //設置默認屬性
  SetOptions: function(options) {
	this.options = {//默認值
		Vertical:	true,//是否垂直方向（方向不能改）
		Auto:	true,//是否自動
		Change:	0,//改變量
		Duration:	50,//滑動持續時間
		Time:	10,//滑動延時
		Pause:	4000,//停頓時間(Auto為true時有效)
		onStart:	function(){},//開始轉換時執行
		onFinish:	function(){},//完成轉換時執行
		Tween:	Tween.Quart.easeOut//tween算子
	};
	Extend(this.options, options || {});
  },
  //開始切換
  Run: function(index) {
	//修正index
	index == undefined && (index = this.Index);
	index < 0 && (index = this._count - 1) || index >= this._count && (index = 0);
	//設置參數
	this._target = -Math.abs(this.Change) * (this.Index = index);
	this._t = 0;
	this._b = parseInt(CurrentStyle(this._slider)[this.options.Vertical ? "top" : "left"]);
	this._c = this._target - this._b;
	
	this.onStart();
	this.Move();
  },
  //移動
  Move: function() {
	clearTimeout(this._timer);
	if (this._c && this._t < this.Duration) {
		this.MoveTo(Math.round(this.Tween(this._t++, this._b, this._c, this.Duration)));
		this._timer = setTimeout(Bind(this, this.Move), this.Time);
	}else{
		this.MoveTo(this._target);
		this.Auto && (this._timer = setTimeout(Bind(this, this.Next), this.Pause));
	}
  },
  //移動到
  MoveTo: function(i) {
	this._slider.style[this._css] = i + "px";
  },
  //下一個
  Next: function() {
	this.Run(++this.Index);
  },
  //上一個
  Previous: function() {
	this.Run(--this.Index);
  },
  //停止
  Stop: function() {
	clearTimeout(this._timer); this.MoveTo(this._target);
  }
};
</SCRIPT>
<BODY>
<div   class="1llnpz5"   id=idContainer2 class=container>
<TABLE id=idSlider2 border=0 cellSpacing=0 cellPadding=0>
  <TBODY>
<TR>
<TD class=td_f><A onclick="pgvSendClick({hottag:'ISD.SHOW.BANNER.SOFTMGR'});" href=""><IMG src="http://p1.mb5u.com/texiao/1/20110225160531473.jpg"></A></TD>
<TD class=td_f><A onclick="pgvSendClick({hottag:'ISD.SHOW.BANNER.PY'});" href=""><IMG src="http://p1.mb5u.com/texiao/1/20110225160531474.jpg"></A></TD>
<TD class=td_f><A onclick="pgvSendClick({hottag:'ISD.SHOW.BANNER.PLAYER'});" href=""><IMG src="http://p1.mb5u.com/texiao/1/20110225160531475.jpg"></A></TD>
<TD class=td_f><A onclick="pgvSendClick({hottag:'ISD.SHOW.BANNER.XF'});"  href=""><IMG src="http://p1.mb5u.com/texiao/1/20110225160531476.jpg"></A></TD>
<TD class=td_f><A onclick="pgvSendClick({hottag:'ISD.SHOW.BANNER.TT'});"  href=""><IMG  src="http://p1.mb5u.com/texiao/1/20110225160531477.jpg"></A></TD>
</TR>
  </TBODY>
</TABLE>
<UL id=idNum class=num></UL>
</DIV>
<SCRIPT>
var forEach = function(array, callback, thisObject){
	if(array.forEach){
		array.forEach(callback, thisObject);
	}else{
		for (var i = 0, len = array.length; i < len; i++) { callback.call(thisObject, array[i], i, array); }
	}
}
var st = new SlideTrans("idContainer2", "idSlider2", 5, { Vertical: false });
var nums = [];
//插入數字
for(var i = 0, n = st._count - 1; i <= n;){
	(nums[i] = $("idNum").appendChild(document.createElement("li"))).innerHTML = ++i;
}
forEach(nums, function(o, i){
	o.onmouseover = function(){ o.className = "on"; st.Auto = false; st.Run(i); }
	o.onmouseout = function(){ o.className = ""; st.Auto = true; st.Run(); }
})
//設置按鈕樣式
st.onStart = function(){
	forEach(nums, function(o, i){ o.className = st.Index == i ? "on" : ""; })
}

st.Run();
</SCRIPT>
</BODY>
</HTML>

所屬頻道：圖片特效特效/更新時間：2012-11-24

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