js实现TAB切换对应不同颜色的代码

本文实例讲述了js实现TAB切换对应不同颜色的代码。分享给大家供大家参考。具体如下：

这是一个个性化的TAB菜单，每个TAB卡片的背景颜色都不相同，鼠标点击上部的TAB，在主体内容区可看到颜色的变化。

运行效果截图如下：

在线演示地址如下：

http://demo.jb51.net/js/2015/js-cha-tab-color-nav-codes/

具体代码如下：

<!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>
<title>不同颜色选项卡</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
<style type="text/css">
 * {
  margin: 0;
  padding: 0;
 }
 body {
  font: 12px/20px 'microsoft yahei', 'arial';
  word-break: break-all;
  word-wrap: break-word;
 }
 .clearfix:after {
  content: '.';
  display: block;
  clear: both;
  height: 0;
  visibility: hidden;
 }
 .clearfix {
  display: inline-block;
 }
 * html .clearfix {
  height: 1%;
 }
 .clearfix {
  display: block;
 }
 #wrap {
  width: 320px;
  margin: 2em auto;
 }
 .card_List {
  height: 30px;
  border-bottom: 1px solid #f00;
  position: relative;
 }
 .card_List li {
  float: left;
  width: 68px;
  text-align: center;
  height: 30px;
  line-height: 30px;
  margin: 0 5px;
  display: inline;
  border-top-left-radius: 6px;
  border-top-right-radius: 6px;
 }
 .card_List li.current {
  height: 34px;
  line-height: 34px;
  margin-top: -4px;
  border: 1px solid #F00;
  background: #FF9494;
  border-bottom: none;
  color: #fff;
 }
 #oLi li:nth-child(1){
  background: #FF9494;
 }
 #oLi li:nth-child(2){
  background: #8CFE8C;
 }
 #oLi li:nth-child(3){
  background: #6969FB;
 }
 #oLi li:nth-child(4){
  background: #FFE26F;
 }
 .card_content div {
  display: none;
  height: 100px;
  text-align: center;
  color: white;
 }
 .card_content div:first-child {
  background: #FF9494;
 }
</style>
<script type="text/javascript">
 window.onload = function () {
  var colorArr = {
   0:"#f00",
   1:"#0f0",
   2:"#00f",
   3:"#FC0"
  };
  var bgColorArr = {
   0:"#FF9494",
   1:"#8CFE8C",
   2:"#6969FB",
   3:"#FFE26F",
  }
  var oL = document.getElementById("oLi");
  var oLi = oL.getElementsByTagName("li");
  var oUl = document.getElementById("oUl").getElementsByTagName("div");
  for ( var i=0 ; i<oLi.length ; i++ ){
   oLi[i].index = i;
   oLi[i].onclick = function () {
    for ( var j = 0 ; j < oLi.length ; j++ ){
     oLi[j].className = "";
     oLi[j].style.border = "none";
    }
    this.className = "current";
    this.style.border = "1px solid " + colorArr[this.index];
    this.style.borderBottom = "none";
    oL.style.borderBottom = "1px solid " + colorArr[this.index];
    for ( var j=0 ; j < oUl.length ; j++ ){
     oUl[j].style.display = "none";
     oUl[this.index].style.display = "block";
     oUl[j].style.backgroundColor = bgColorArr[this.index];
    }
   };
  }
 };
</script>
</head>
<body>
 <div id="wrap">
  <ul id="oLi" class="card_List clearfix">
   <li class="current">1</li>
   <li>2</li>
   <li>3</li>
   <li>4</li>
  </ul>
  <div id="oUl" class="card_content">
   <div style="display:block;">
    11111111111111
   </div>
   <div>
    22222222222
   </div>
   <div>
    3333333333333
   </div>
   <div>
    44444444444444444
   </div>
  </div>
 </div>
</body>
</html>

希望本文所述对大家的javascript程序设计有所帮助。