简单的jquery左侧导航栏和页面选中效果

这里是要实现导航的左侧并选中的，此功能需引用jquery

效果：

左侧导航

<div class="box">

<ul class="menu">
   <li class="level1">
      <a href="#none" rel="external nofollow">衬衫</a>
      <ul class="level2">
         <li><a href="#none" rel="external nofollow">短袖衬衫</a></li>
      </ul>
   </li>
</ul>
<ul class="menu">
   <li class="level1">
      <a href="#none" rel="external nofollow">衬衫</a>
      <ul class="level2">
         <li><a href="#none" rel="external nofollow">短袖衬衫</a></li>
      </ul>
   </li>
</ul>

</div>

js代码：

<script type="text/javascript">

//等待dom元素加载完毕.

$(document).ready(function(){

$(".level1 > a").click(function(){

$(this).addClass("current") //给当前元素添加"current"样式

.next().show() //下一个元素显示

.parent().siblings().children("a").removeClass("current") //父元素的兄弟元素的子元素<a>移除"current"样式

.next().hide(); //它们的下一个元素隐藏

return false;

});

});

</script>

css

body{margin:0;padding:0 0 12px 0;font-size:12px;line-height:22px;font-family:"\5b8b\4f53","Arial Narrow";background:#fff;}

form,ul,li,p,h1,h2,h3,h4,h5,h6{margin:0;padding:0;}

input,select{font-size:12px;line-height:16px;}

img{border:0;}

ul,li{list-style-type:none;}

a {color:#00007F;text-decoration:none;}

a:hover {color:#bd0a01;text-decoration:underline;}

 

.box {

width: 150px;

margin: 0 auto;

}

.menu{

overflow:hidden;

border-color: #C4D5DF;

border-style: solid;

border-width: 0 1px 1px;

}

/* lv1 */

.menu li.level1 a{

display: block;

height: 28px;

line-height: 28px;

background:#EBF3F8;

font-weight:700;

color: #5893B7;

text-indent: 14px;

border-top: 1px solid #C4D5DF;

}

.menu li.level1 a:hover{text-decoration:none;}

.menu li.level1 a.current{background:#B1D7EF;}

/* lv2 */

.menu li ul{overflow:hidden;}

.menu li ul.level2{display:none;}

.menu li ul.level2 li a{

display: block;

height: 28px;

line-height: 28px;

background:#ffffff;

font-weight:400;

color: #42556B;

text-indent: 18px;

border-top: 0px solid #ffffff;

overflow: hidden;

}

.menu li ul.level2 li a:hover{

color:#f60;

}

 

JS

<script type="text/javascript">

$(document).ready(function(){

$(".level2 a").each(function(){

$this = $(this);

if($this[0].href==String(window.location)){

$this.addClass("hover");

}

});

});

</script>