js实现显示当前状态的导航效果代码

本文实例讲述了js实现显示当前状态的导航效果代码。分享给大家供大家参考。具体如下：

这里演示显示当前状态的导航，鼠标点击左侧的导航菜单，右侧的内容就会变换，实际上是一个竖向的TAB选项卡，作为菜单来用的话，它正好可以显示当前的菜单位置，比较经典。

运行效果截图如下：

在线演示地址如下：

http://demo.jb51.net/js/2015/js-show-nav-style-status-codes/

具体代码如下：

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html lang="en">
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<title>显示当前状态的导航</title>
<style type="text/css">
body { font-family:verdana; }
#content { float:left; width:400px; border:1px solid #ccc; margin-left:20px; padding:2px 10px 10px 10px; }
ul { margin:0; padding:0; list-style: none; width:200px; float:left; }
ul li { margin:0 0 1px 0; padding:0; }
ul li a {
 display:block;
 padding:8px;
 text-decoration:none;
 background: #eee;
 color: #039;
}
ul li a:hover {
 background: #ffc;
}
ul li a.selected {
 background: #c63;
 color:#fff;
}
#content div { display:none; }
#content div.on { display:block; }
</style>
<script type="text/javascript">
function applySelectedTo(link) {
 var ul = document.getElementsByTagName("ul")[0]; // get the first ul tag on the page
 var allLinks = ul.getElementsByTagName("a"); // get all the links within that ul
 for (var i=0; i<allLinks.length; i++) { // iterate through all those links
  allLinks[i].className = ""; // and assign their class names to nothing
 }
 link.className = "selected"; // finally, assign class="selected" to our chosen link
 var allDivs = document.getElementsByTagName("div");
 for (var k=0; k<allDivs.length; k++) {
  allDivs[k].className = "";
 }
 var lyricId = link.getAttribute("href").split("#")[1];
 lyricId = document.getElementById(lyricId);
 lyricId.className = "on";
}
</script>
</head>
<body>
<h1>A list of links (styled, selected state, onclick, return false, and does something)</h1>
<ul>
 <li><a onclick="applySelectedTo(this);return false;" href="#heartbreakHotel">世界七星级宾馆</a></li>
 <li><a onclick="applySelectedTo(this);return false;" href="#blueSuedeShoes">蓝色梦想</a></li>
 <li><a onclick="applySelectedTo(this);return false;" href="#houndDog" class="selected">千年等待</a></li>
 <li><a onclick="applySelectedTo(this);return false;" href="#dontBeCruel">不要忘记我</a></li>
 <li><a onclick="applySelectedTo(this);return false;" href="#teddyBear">青岛啤酒</a></li>
</ul>
<div id="content">
 <div id="heartbreakHotel">
  <h2>Heartbreak Hotel</h2>
  <p>Well, since my baby left me,<br />
  I found a new place to dwell.<br />
  Its down at the end of lonely street<br />
  At heartbreak hotel.</p>
  <p>You make me so lonely baby,<br />
  I get so lonely,<br />
  I get so lonely I could die.</p>
  <p>And although its always crowded,<br />
  You still can find some room.<br />
  Where broken hearted lovers<br />
  Do cry away their gloom.</p>
  <p>You make me so lonely baby,<br />
  I get so lonely,<br />
  I get so lonely I could die.</p>
  <p>Well, the bell hops tears keep flowin,<br />
  And the desk clerks dressed in black.<br />
  Well they been so long on lonely street<br />
  They aint ever gonna look back.</p>
  <p>You make me so lonely baby,<br />
  I get so lonely,<br />
  I get so lonely I could die.</p>
  <p>Hey now, if your baby leaves you,<br />
  And you got a tale to tell.<br />
  Just take a walk down lonely street<br />
  To heartbreak hotel.</p>
 </div>
 <div id="blueSuedeShoes">
  <h2>Blue Suede Shoes</h2>
  <p>Well, its one for the money,<br />
  Two for the show,<br />
  Three to get ready,<br />
  Now go, cat, go.</p>
  <p>But dont you step on my blue suede shoes.<br />
  You can do anything but lay off of my blue suede shoes.</p>
  <p>Well, you can knock me down,<br />
  Step in my face,<br />
  Slander my name<br />
  All over the place.</p>
  <p>Do anything that you want to do, but uh-uh,<br />
  Honey, lay off of my shoes<br />
  Dont you step on my blue suede shoes.<br />
  You can do anything but lay off of my blue suede shoes.</p>
  <p>You can burn my house,<br />
  Steal my car,<br />
  Drink my liquor<br />
  From an old fruitjar.</p>
  <p>Do anything that you want to do, but uh-uh,<br />
  Honey, lay off of my shoes<br />
  Dont you step on my blue suede shoes.<br />
  You can do anything but lay off of my blue suede shoes.</p>
 </div>
 <div class="on" id="houndDog">
  <h2>Hound Dog</h2>
  <p>You aint nothin but a hound dog<br />
  Cryin all the time.<br />
  You aint nothin but a hound dog<br />
  Cryin all the time.<br />
  Well, you aint never caught a rabbit<br />
  And you aint no friend of mine.</p>
  <p>When they said you was high classed,<br />
  Well, that was just a lie.<br />
  When they said you was high classed,<br />
  Well, that was just a lie.<br />
  You aint never caught a rabbit<br />
  And you aint no friend of mine.</p>
 </div>
 <div id="dontBeCruel">
  <h2>Don't Be Cruel</h2>
  <p>You know I can be found,<br />
  Sitting home all alone,<br />
  If you cant come around,<br />
  At least please telephone.<br />
  Dont be cruel to a heart thats true.</p>
  <p>Baby, if I made you mad<br />
  For something I might have said,<br />
  Please, lets forget the past,<br />
  The future looks bright ahead,<br />
  Dont be cruel to a heart thats true.<br />
  I dont want no other love,<br />
  Baby its just you Im thinking of.</p>
  <p>Dont stop thinking of me,<br />
  Dont make me feel this way,<br />
  Come on over here and love me,<br />
  You know what I want you to say.<br />
  Dont be cruel to a heart thats true.<br />
  Why should we be apart?<br />
  I really love you baby, cross my heart.</p>
  <p>Lets walk up to the preacher<br />
  And let us say I do,<br />
  Then youll know youll have me,<br />
  And Ill know that Ill have you,<br />
  Dont be cruel to a heart thats true.<br />
  I dont want no other love,<br />
  Baby its just you Im thinking of.</p>
  <p>Dont be cruel to a heart thats true.<br />
  Dont be cruel to a heart thats true.<br />
  I dont want no other love,<br />
  Baby its just you Im thinking of.</p>
 </div>
 <div id="teddyBear">
  <h2>Teddy Bear</h2>
  <p>Baby let me be,<br />
  Your lovin teddy bear<br />
  Put a chain around my neck,<br />
  And lead me anywhere<br />
  Oh let me be<br />
  Your teddy bear.</p>
  <p>I dont wanna be a tiger<br />
  Cause tigers play too rough<br />
  I dont wanna be a lion<br />
  cause lions aint the kind<br />
  You love enough.<br />
  Just wanna be, your teddy bear<br />
  Put a chain around my neck<br />
  And lead me anywhere<br />
  Oh let me be<br />
  Your teddy bear.</p>
  <p>Baby let me be, around you every night<br />
  Run your fingers through my hair,<br />
  And cuddle me real tight.</p>
 </div>
</div>
</body>
</html>

希望本文所述对大家的javascript程序设计有所帮助。