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仿百度风云榜TAB切换，重复多次调用的选项卡

时间：2012-09-02 18:55 来源：互联网作者：后浪收藏推荐

<!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>仿百度风云榜TAB切换</title>
<style>
body,div,h5,ul,li{margin:0;padding:0;}
body{font:12px/1.5 Arial;}
li{list-style:none;}
a:link,a:visited{color:#333;text-decoration:none;}
a:hover{text-decoration:underline;}
#wrap{width:836px;border:3px solid #1972C0;border-width:3px 0;margin:10px auto;}
#list{overflow:hidden;zoom:1;margin-left:-10px;}
#wrap .item{display:inline;float:left;width:270px;padding-bottom:10px;border:1px solid #EBEBEB;margin:10px 0 10px 10px;}
#wrap .item .tab{position:relative;height:25px;border-bottom:1px solid #CCC;margin:8px;}
#wrap .item .tab h5{position:absolute;left:10px;font-size:14px;}
#wrap .item .tab .switchBtn{position:absolute;top:3px;right:0;}
#wrap .item .tab .switchBtn a{float:left;width:15px;height:15px;margin-left:5px;overflow:hidden;text-indent:-999px;background:url(http://www.sucaiko.com/uploads/allimg/120902/1-120Z21U613604.gif) no-repeat;outline:none;}
#wrap .item .tab .switchBtn a.prev{background-position:0 -25px;}
#wrap .item .tab .switchBtn a.prevNot{background-position:0 0;cursor:default;}
#wrap .item .tab .switchBtn a.next{background-position:right -25px;}
#wrap .item .tab .switchBtn a.nextNot{background-position:right 0;cursor:default;}
#wrap .item .tab ul{position:absolute;top:-2px;left:50px;width:160px;height:28px;overflow:hidden;}
#wrap .item .tab ul li{float:left;cursor:pointer;line-height:26px;padding:0 8px;}
#wrap .item .tab ul li.current{cursor:text;color:#E45E2E;font-weight:700;border:1px solid #CCC;border-bottom-color:#FFF;}
#wrap .item .items{display:none;background:url(http://www.sucaiko.com/uploads/allimg/120902/1-120Z21U910192.gif) 15px 4px no-repeat;padding:0 15px;}
#wrap .item .items a{color:#3A64B0;}
#wrap .item .items li{height:24px;line-height:24px;padding-left:20px;border-bottom:1px solid #EBEBEB;}
#wrap .item .btn{height:22px;margin-top:10px;}
#wrap .item .btn a{float:right;width:74px;height:22px;overflow:hidden;margin-right:15px;text-indent:-9999px;background:url(http://www.sucaiko.com/uploads/allimg/120902/1-120Z21Z100C8.gif) no-repeat;}
#wrap .item .btn a:hover{background-position:0 -22px;}
#copyright{color:#9A9A9A;text-align:center;}
#copyright a{color:#FFF;padding:2px 5px;border-radius:10px;background:#9A9A9A;}
</style>
<script>
var fgm = {
 $: function(id) {
  return typeof id === "object" ? id : document.getElementById(id);
 },
 $$: function(tagName, oParent) {
  return (oParent || document).getElementsByTagName(tagName);
 },
 $$$: function(className, element, tagName) {
  var i = 0, aClass = [], reClass = new RegExp("(^|\\s)" + className + "(\\s|$)"), aElement = fgm.$$(tagName || "*", element || document);
  for (i = 0; i < aElement.length; i++) reClass.test(aElement[i].className) && aClass.push(aElement[i]);
  return aClass;
 },
 index: function(element) {
  var aChildren = element.parentNode.children, i;
  for(i = 0; i < aChildren.length; i++) if(aChildren[i] === element) return i;
  return -1;
 },
 on: function(element, type, handler) {
  return element.addEventListener ? element.addEventListener(type, handler, !1) : element.attachEvent("on" + type, handler); 
 },
 bind: function(object, handler) {
  return function() {
   return handler.apply(object, arguments);
  }; 
 }
};
function Tab(id) {
 var that = this;
 this.obj = fgm.$(id);
 this.oTab = fgm.$$$("tab", this.obj)[0];
 this.aTab = fgm.$$("li", this.oTab);
 this.oSwitch = fgm.$$$("switchBtn", this.oTab)[0];
 this.oPrev = fgm.$$("a", this.oSwitch)[0];
 this.oNext = fgm.$$("a", this.oSwitch)[1];
 this.aItems = fgm.$$$("items", this.obj);
 this.iNow = 0;  
 fgm.on(this.oSwitch, "click", fgm.bind(this, this.fnClick));
 fgm.on(this.oTab, "mouseover", fgm.bind(this, this.fnMouseOver));
}
Tab.prototype = {
 fnMouseOver: function(ev) {
  var oEv = ev || event,
  oTarget = oEv.target || oEv.srcElement;
  oTarget.tagName.toUpperCase() === "LI" && (this.iNow = fgm.index(oTarget));
  this.fnSwitch();
 },
 fnClick: function(ev) {
  var oEv = ev || event,
  oTarget = oEv.target || oEv.srcElement,
  i;
  switch(fgm.index(oTarget)) {
   case 0:
    if(oTarget.className == "prev") {
     this.aTab[this.iNow].style.display = "block";
     this.iNow--; 
    };
    break;
   case 1:
    if(oTarget.className == "next") {     
     for(i = 0; i < this.iNow; i++) this.aTab[i].style.display = "none";
     this.iNow++; 
    };
    break;
  };
  this.aTab[this.iNow].style.display = "block";  
  this.fnSwitch(); 
 },
 fnSwitch: function() {
  for(var i = 0; i < this.aTab.length; i++) (this.aTab[i].className = "", this.aItems[i].style.display = "none"); 
  this.aTab[this.iNow].className = "current";
  this.aItems[this.iNow].style.display = "block";
  this.oPrev.className = this.iNow == 0 ? "prevNot" : "prev";
  this.oNext.className = this.iNow == this.aTab.length - 1 ? "nextNot" : "next";
 }
};
//应用
fgm.on(window, "load", function() {
 var aItem = fgm.$$$("item"),
 i = 0;
 for(; i < aItem.length; i++) new Tab(aItem[i]);
});
</script>
</head>
<body>
<div id="wrap">
    <div id="list">
        <div class="item">
            <div class="tab">
                <h5><a href="#">教育</a></h5>
                <ul>
                    <li class="current">基础教育</li>
                    <li>英语培训</li>
                </ul>
                <span class="switchBtn"><a href="javascript:;" class="prevNot">左</a><a href="javascript:;" class="next">右</a></span>
            </div>
            <ul class="items" style="display:block;">
                <li><a href="#">北京四中网校</a></li>
                <li><a href="#">学大教育</a></li>
                <li><a href="#">中国统一教育网</a></li>
                <li><a href="#">101远程教育网</a></li>
                <li><a href="#">巨人教育</a></li>
                <li><a href="#">黄冈中学网校</a></li>
            </ul>
            <ul class="items">
                <li><a href="#">新东方</a></li>
                <li><a href="#">英孚教育</a></li>
                <li><a href="#">环球雅思</a></li>
                <li><a href="#">韦博国际英语</a></li>
                <li><a href="#">华尔街英语</a></li>
                <li><a href="#">新航道</a></li>
            </ul>
            <div class="btn"><a href="#">完整榜单</a></div>
        </div>
        <div class="item">
            <div class="tab">
                <h5><a href="#">教育</a></h5>
                <ul>
                    <li class="current">基础教育</li>
                    <li>英语培训</li>
                </ul>
                <span class="switchBtn"><a href="javascript:;" class="prevNot">左</a><a href="javascript:;" class="next">右</a></span>
            </div>
            <ul class="items" style="display:block;">
                <li><a href="#">北京四中网校</a></li>
                <li><a href="#">学大教育</a></li>
                <li><a href="#">中国统一教育网</a></li>
                <li><a href="#">101远程教育网</a></li>
                <li><a href="#">巨人教育</a></li>
                <li><a href="#">黄冈中学网校</a></li>
            </ul>
            <ul class="items">
                <li><a href="#">新东方</a></li>
                <li><a href="#">英孚教育</a></li>
                <li><a href="#">环球雅思</a></li>
                <li><a href="#">韦博国际英语</a></li>
                <li><a href="#">华尔街英语</a></li>
                <li><a href="#">新航道</a></li>
            </ul>
            <div class="btn"><a href="#">完整榜单</a></div>
        </div>
        <div class="item">
            <div class="tab">
                <h5><a href="#">教育</a></h5>
                <ul>
                    <li class="current">基础教育</li>
                    <li>英语培训</li>
                </ul>
                <span class="switchBtn"><a href="javascript:;" class="prevNot">左</a><a href="javascript:;" class="next">右</a></span>
            </div>
            <ul class="items" style="display:block;">
                <li><a href="#">北京四中网校</a></li>
                <li><a href="#">学大教育</a></li>
                <li><a href="#">中国统一教育网</a></li>
                <li><a href="#">101远程教育网</a></li>
                <li><a href="#">巨人教育</a></li>
                <li><a href="#">黄冈中学网校</a></li>
            </ul>
            <ul class="items">
                <li><a href="#">新东方</a></li>
                <li><a href="#">英孚教育</a></li>
                <li><a href="#">环球雅思</a></li>
                <li><a href="#">韦博国际英语</a></li>
                <li><a href="#">华尔街英语</a></li>
                <li><a href="#">新航道</a></li>
            </ul>
            <div class="btn"><a href="#">完整榜单</a></div>
        </div>
            </div>
    
</div>
</body>
</html>

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