编程 Javascript
js仿百度有啊通栏展示效果实现代码

Posted in Javascript onMay 28, 2013
效果图如下：
js仿百度有啊通栏展示效果实现代码
页面代码：
<!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=utf-8" /> 
<title>百度有啊通栏展示效果</title> 
<style type="text/css"> 
body,div,dl,dt,dd,ul,li,h3{margin:0;padding:0;} 
body{color:#333;font:12px/1.5 arial;} 
li{list-style:none;} 
a:link,a:visited,a:active{color:#333;text-decoration:none;} 
a:hover{color:#F30;} 
img{border:none;} 
#box{width:740px;margin:10px auto;} 
#container{position:relative;height:232px;background:#FCFCFC;} 
#container .item{position:absolute;top:0;left:0;width:492px;height:230px;overflow:hidden;background:#FAFAFA;border:1px solid #ddd;z-index:1;opacity:1;} 
#container .item .pic{float:left;width:210px;height:200px;display:inline;margin:15px;} 
#container .item .pic img{width:210px;height:200px;vertical-align:top;} 
#container .item .txt{float:left;width:250px;margin-top:12px;} 
#container .item .txt dt{font-size:14px;font-weight:700;} 
#container .item .txt .info{color:#999;} 
#container .item .txt dd{height:24px;line-height:24px;} 
#container .item .txt dd span{float:left;} 
#container .item .txt .star{position:relative;float:left;height:12px;width:69px;margin:6px 0 0 5px;} 
#container .item .txt .star .star_red{position:absolute;top:0;left:0;height:12px;width:69px;z-index:2;background:url(http://js.fgm.cc/learn/lesson10/img/youa/star.png) repeat-x scroll left top transparent;} 
#container .item .txt .star .star_grey{background:url(http://js.fgm.cc/learn/lesson10/img/youa/star.png) repeat-x scroll left -15px transparent;height:12px;width:69px;} 
#container .item .txt .pink,#container .item .txt .blue,#container .item .txt .green{color:#FFF;font-weight:700;margin-right:2px;background:#F66B5B;padding:0 5px;} 
#container .item .txt .blue{background:#96BAE7;} 
#container .item .txt .green{background:#9CDBC3;} 
#container .item .txt .comment{width:232px;height:99px;margin-top:10px;background:#FFF;border:1px solid #EAEAEA;} 
#container .item .txt .comment h3{font-size:12px;font-weight:400;height:24px;line-height:24px;border-bottom:1px solid #E9E9E9;padding:0 10px;} 
#container .item .txt .comment .comment_list{width:220px;height:60px;overflow:hidden;margin:8px 0 0 10px;} 
#container .item .txt .comment .comment_list ul{width:220px;} 
#container .item .txt .comment .comment_list ul li{height:20px;line-height:20px;white-space:nowrap;} 
#container .item .txt .comment .comment_list ul li b{color:#999;font-weight:400;} 
#control{height:37px;text-align:center;background:url(http://js.fgm.cc/learn/lesson10/img/youa/bg.png) no-repeat;} 
#control span{width:8px;height:8px;font-size:0;line-height:0;cursor:pointer;display:inline-block;background-color:#FEFEFE;border:1px solid #BCC1C5;margin:13px 2px 2px;} 
#control span.active{background-color:#848484;border:1px solid #6E6E6E;} 
</style> 
<script type="text/javascript"> 
function Youa (obj) 
{ 
this.obj = $(obj); 
this.container = $("container"); 
this.control = $("control"); 
this.items = $$$("item", this.container); 
this.iCenter = 2; 
this.aSort = []; 
this.timer = null; 
this.oData = [ 
{left:0, zIndex:2, opacity:30}, 
{left:40, zIndex:3, opacity:60}, 
{left:124, zIndex:4, opacity:100}, 
{left:208, zIndex:3, opacity:60}, 
{left:246, zIndex:2, opacity:30}, 
{left:40, zIndex:0, opacity:0} 
]; 
this.__create__() 
}; 
Youa.prototype.__create__ = function () 
{ 
var that = this; 
var oSpan = null; 
var i = 0; 
for (i = 0; i < that.items.length; i++) 
{ 
that.items[i].number = i; 
that.aSort[i] = that.items[i]; 
oSpan = document.createElement("span"); 
oSpan.number = i; 
that.control.appendChild(oSpan) 
} 
for (i = 0; i < 2; i++) this.aSort.unshift(this.aSort.pop()); 
that.aSpan = $$("span", that.control); 
that.control.onmouseover = function (ev) 
{ 
var oEv = ev || event; 
var oTarget = oEv.target || oEv.srcElement; 
if (oTarget.tagName.toUpperCase() == "SPAN") 
{ 
that.aSort.sort(function (a, b) {return a.number - b.number}); 
if (oTarget.number < that.iCenter) 
{ 
for (i = 0; i < that.iCenter - oTarget.number; i++) that.aSort.unshift(that.aSort.pop()); 
that.__set__(); 
return false 
} 
else if (oTarget.number > that.iCenter) 
{ 
for (i = 0; i < oTarget.number - that.iCenter; i++) that.aSort.push(that.aSort.shift()); 
that.__set__(); 
return false 
} 
else 
{ 
that.__set__() 
} 
} 
} 
this.__set__(); 
this.__switch__(); 
this.__autoPlay__() 
}; 
Youa.prototype.__set__ = function () 
{ 
var i = 0; 
for (i = 0; i < this.aSort.length; i++) this.container.appendChild(this.aSort[i]); 
for (i = 0; i < this.aSpan.length; i++) this.aSpan[i].className = ""; 
this.aSpan[this.aSort[this.iCenter].number].className = "active"; 
for (i = 0; i < this.aSort.length; i++) 
{ 
this.aSort[i].index = i; 
if (i < 5) 
{ 
new Animate(this.aSort[i], this.oData[i]); 
} 
else 
{ 
new Animate(this.aSort[i], this.oData[this.oData.length - 1]) 
} 
} 
}; 
Youa.prototype.__switch__ = function () 
{ 
var i = 0; 
var that = this; 
this.container.onclick = function (ev) 
{ 
var oEv = ev || event; 
var oTarget = oEv.target || oEv.srcElement; 
var index = findItem(oTarget); if (index < that.iCenter) 
{ 
for (i = 0; i < that.iCenter - index; i++) that.aSort.unshift(that.aSort.pop()); 
that.__set__(); 
return false 
} 
else if (index > that.iCenter) 
{ 
for (i = 0; i < index - that.iCenter; i++) that.aSort.push(that.aSort.shift()); 
that.__set__(); 
return false 
} 
function findItem (element) 
{ 
return element.className == "item" ? element.index : arguments.callee(element.parentNode) 
} 
}; 
}; 
Youa.prototype.__autoPlay__ = function () 
{ 
var that = this; 
that.timer = setInterval(function () 
{ 
that.aSort[3].click() 
}, 3000); 
that.obj.onmouseover = function () 
{ 
clearInterval(that.timer) 
}; 
that.obj.onmouseout = function () 
{ 
that.timer = setInterval(function () 
{ 
that.aSort[3].click() 
}, 3000) 
} 
}; 
function $ (id) 
{ 
return typeof id === "string" ? document.getElementById(id) : id 
}; 
function $$ (tagName, oParent) 
{ 
return (oParent || document).getElementsByTagName(tagName) 
}; 
function $$$ (className, element, tagName) 
{ 
var i = 0; 
var aClass = []; 
var reClass = new RegExp("(^|//s)" + className + "(//s|$)"); 
var aElement = $$(tagName || "*", element || document); 
for (i = 0; i < aElement.length; i++) reClass.test(aElement[i].className) && aClass.push(aElement[i]); 
return aClass 
}; 
function css (element, attr, value) 
{ 
if (arguments.length == 2) 
{ 
if (typeof arguments[1] === "string") 
{ 
return element.currentStyle ? element.currentStyle[attr] : getComputedStyle(element, null)[attr] 
} 
else 
{ 
for (var property in attr) 
{ 
property == "opacity" ? 
(element.style.filter = "alpha(opacity=" + attr[property] + ")", element.style.opacity = attr[property] / 100) : 
element.style[property] = attr[property] 
} 
} 
} 
else if (arguments.length == 3) 
{ 
switch (attr) 
{ 
case "width": 
case "height": 
case "top": 
case "left": 
case "right": 
case "bottom": 
element.style[attr] = value + "px"; 
break; 
case "opacity" : 
element.style.filter = "alpha(opacity=" + value + ")"; 
element.style.opacity = value / 100; 
break; 
default : 
element.style[attr] = value; 
break 
} 
} 
return element 
}; 
function Animate (element, options, fnCallBack) 
{ 
this.obj = $(element); 
this.options = options; 
this.__onEnd__ = fnCallBack; 
this.__startMove__() 
}; 
Animate.prototype.__startMove__ = function () 
{ 
var that = this; 
clearInterval(that.obj.timer); 
that.obj.timer = setInterval(function () 
{ 
that.__doMove__() 
}, 30); 
}; 
Animate.prototype.__doMove__ = function () 
{ 
var complete = true; 
var property = null; 
for (property in this.options) 
{ 
var iCur = parseFloat(css(this.obj, property)); 
property == "opacity" && (iCur = parseInt(iCur.toFixed(2) * 100)); 
var iSpeed = (this.options[property] - iCur) / 5; 
iSpeed = iSpeed > 0 ? Math.ceil(iSpeed) : Math.floor(iSpeed); 
this.options[property] == iCur || (complete = false, css(this.obj, property, iSpeed + iCur)) 
} 
complete && (clearInterval(this.obj.timer), this.__onEnd__ && this.__onEnd__.apply(this.obj)) 
}; 
window.onload = function () 
{ 
new Youa("box") 
}; 
</script> 
</head> 
<body> 
<div id="box"> 
<div id="container"> 
<div class="item"> 
<div class="pic"> 
<a href="javascript:;"><img src="http://js.fgm.cc/learn/lesson10/img/youa/1.jpg" /></a> 
</div> 
<div class="txt"> 
<dl> 
<dt><a href="javascript:;">必图拳馆</a></dt> 
<dd class="info">不要把自己困住 你需要释放！</dd> 
<dd><span>总体评价：</span><div class="star"><div style="width:48px;" class="star_red"></div><div class="star_grey"></div></div></dd> 
<dd><span>用户印象：</span><span class="pink">过瘾</span><span class="blue">带劲</span><span class="green">有活力</span></dd> 
</dl> 
<div class="comment"> 
<h3>用户评价</h3> 
<div class="comment_list"> 
<ul id="list"> 
<li><b>thaifight：</b>是一个非常好的一个拳...</li> 
<li><b>快乐小友：</b>散打课的实战机会挺多...</li> 
<li><b>爱情赛车：</b>白天人很少，喜欢安静...</li> 
</ul> 
</div> 
</div> 
</div> 
</div> 
<div class="item"> 
<div class="pic"> 
<a href="javascript:;"><img src="http://js.fgm.cc/learn/lesson10/img/youa/2.jpg"></a> 
</div> 
<div class="txt"> 
<dl> 
<dt><a href="javascript:;">北京「七田阳光」全脑教育培训中心</a></dt> 
<dd class="info">点亮孩子智慧人生</dd> 
<dd><span>总体评价：</span><div class="star"><div style="width:48px;" class="star_red"></div><div class="star_grey"></div></div></dd> 
<dd><span>用户印象：</span><span class="pink">亲切</span><span class="blue">耐心</span><span class="green">干净</span></dd> 
</dl> 
<div class="comment"> 
<h3>用户评价</h3> 
<div class="comment_list"> 
<ul id="list"> 
<li><b>Jcenter：</b>如此诚恳的教育机构 ...</li> 
<li><b>citaslin：</b>孩子的进步很大</li> 
<li><b>甲鱼爱媛媛：</b>七田阳光很注重品质，...</li> 
</ul> 
</div> 
</div> 
</div> 
</div> 
<div class="item"> 
<div class="pic"> 
<a href="javascript:;"><img src="http://js.fgm.cc/learn/lesson10/img/youa/3.jpg" /></a> 
</div> 
<div class="txt"> 
<dl> 
<dt><a href="javascript:;">慕纱莹雪婚纱礼服馆</a></dt> 
<dd class="info">物超所值的性价比，尽在慕纱莹雪！</dd> 
<dd><span>总体评价：</span><div class="star"><div style="width:62px;" class="star_red"></div><div class="star_grey"></div></div></dd> 
<dd><span>用户印象：</span><span class="pink">精致</span><span class="blue">做工好</span><span class="green">专业</span></dd> 
</dl> 
<div class="comment"> 
<h3>用户评价</h3> 
<div class="comment_list"> 
<ul id="list"> 
<li><b>小企鹅快跑：</b>这个周末去取了我定的...</li> 
<li><b>月逢明时：</b>这家婚纱店的婚纱做工...</li> 
<li><b>日历本丢了：</b>上周末去取了婚纱，婚...</li> 
</ul> 
</div> 
</div> 
</div> 
</div> 
<div class="item"> 
<div class="pic"> 
<a href="javascript:;"><img src="http://js.fgm.cc/learn/lesson10/img/youa/4.jpg"></a> 
</div> 
<div class="txt"> 
<dl> 
<dt><a href="javascript:;">北京金三优装饰有限责任公司</a></dt> 
<dd class="info">一站式服务让你省时、省力、省钱、省心</dd> 
<dd><span>总体评价：</span><div class="star"><div style="width:48px;" class="star_red"></div><div class="star_grey"></div></div></dd> 
<dd><span>用户印象：</span><span class="pink">口碑好</span><span class="blue">规模很大</span><span class="green">讲信誉</span></dd> 
</dl> 
<div class="comment"> 
<h3>用户评价</h3> 
<div class="comment_list"> 
<ul id="list"> 
<li><b>紫婧之梦：</b>这家店不错哦！</li> 
<li><b>gotometop：</b>装修工都还挺朴实的，...</li> 
<li><b>libangcheng1：</b>这家公司还可以，去年...</li> 
</ul> 
</div> 
</div> 
</div> 
</div> 
<div class="item"> 
<div class="pic"> 
<a href="javascript:;"><img src="http://js.fgm.cc/learn/lesson10/img/youa/5.jpg"></a> 
</div> 
<div class="txt"> 
<dl> 
<dt><a href="javascript:;">鸿喜族休闲俱乐部—潘家园店</a></dt> 
<dd class="info">专注人类健康，打造财富传奇！</dd> 
<dd><span>总体评价：</span><div class="star"><div style="width:48px;" class="star_red"></div><div class="star_grey"></div></div></dd> 
<dd><span>用户印象：</span><span class="pink">真好</span><span class="blue">专业</span><span class="green">手法好</span></dd> 
</dl> 
<div class="comment"> 
<h3>用户评价</h3> 
<div class="comment_list"> 
<ul id="list"> 
<li><b>永封de铁盒：</b>环境挺不错，灯光控制...</li> 
<li><b>老冯爱国：</b>不错的地方，是个很有...</li> 
<li><b>白云寺方丈：</b>我不会打台球，但朋友...</li> 
</ul> 
</div> 
</div> 
</div> 
</div> 
<div class="item"> 
<div class="pic"> 
<a href="javascript:;"><img src="http://js.fgm.cc/learn/lesson10/img/youa/6.jpg"></a> 
</div> 
<div class="txt"> 
<dl> 
<dt><a href="javascript:;">北京心拓城拓展培训</a></dt> 
<dd class="info">客户第一 执行有力 激情勤奋 简单团结</dd> 
<dd><span>总体评价：</span><div class="star"><div style="width:48px;" class="star_red"></div><div class="star_grey"></div></div></dd> 
<dd><span>用户印象：</span><span class="pink">专业</span><span class="blue">安全</span><span class="green">积极</span></dd> 
</dl> 
<div class="comment"> 
<h3>用户评价</h3> 
<div class="comment_list"> 
<ul id="list"> 
<li><b>janice19891：</b>很负责任~</li> 
<li><b>旺达是条鱼：</b>朋友参加过他们的拓展...</li> 
<li><b>bjftxiaoniu：</b>吼吼，在这里看到他们...</li> 
</ul> 
</div> 
</div> 
</div> 
</div> 
<div class="item"> 
<div class="pic"> 
<a href="javascript:;"><img src="http://js.fgm.cc/learn/lesson10/img/youa/7.jpg"></a> 
</div> 
<div class="txt"> 
<dl> 
<dt><a href="javascript:;">韩医生专业祛痘连锁机构北京直营店</a></dt> 
<dd class="info">我们只祛痘 所以更专业</dd> 
<dd><span>总体评价：</span><div class="star"><div style="width:62px;" class="star_red"></div><div class="star_grey"></div></div></dd> 
<dd><span>用户印象：</span><span class="pink">效果好</span><span class="blue">细心</span><span class="green">专业</span></dd> 
</dl> 
<div class="comment"> 
<h3>用户评价</h3> 
<div class="comment_list"> 
<ul id="list"> 
<li><b>天涯hehaijiao：</b>这家店很好，顾客很多...</li> 
<li><b>爱神马geili：</b>我治疗了两天感觉的好...</li> 
<li><b>天上的语言：</b>这几天已经看到明显效...</li> 
</ul> 
</div> 
</div> 
</div> 
</div> 
<div class="item"> 
<div class="pic"> 
<a href="javascript:;"><img src="http://js.fgm.cc/learn/lesson10/img/youa/8.jpg"></a> 
</div> 
<div class="txt"> 
<dl> 
<dt><a href="javascript:;">罗曼卡婚纱摄影</a></dt> 
<dd class="info">口碑好 性价比高 无额外消费</dd> 
<dd><span>总体评价：</span><div class="star"><div style="width:62px;" class="star_red"></div><div class="star_grey"></div></div></dd> 
<dd><span>用户印象：</span><span class="pink">口碑好</span><span class="blue">很喜欢</span><span class="green">完美</span></dd> 
</dl> 
<div class="comment"> 
<h3>用户评价</h3> 
<div class="comment_list"> 
<ul id="list"> 
<li><b>明确指出i：</b>拍的很不错，老妈都夸...</li> 
<li><b>爱就一直走吧：</b>他们家服务态度好，衣...</li> 
<li><b>爱过你me：</b>最后照片拍出来后朋友...</li> 
</ul> 
</div> 
</div> 
</div> 
</div> 
</div> 
<div id="control"></div> 
</div> 
</body> 
</html>
js仿百度有啊通栏展示效果实现代码
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