<style>
.active{ color:#D96C00;}/*高亮样式*/
</style>

<nav class="mui-bar mui-bar-tab" id="menu">
  <a href="menuTest.html" rel="external nofollow" rel="menuTest.html" class="mui-tab-item"><!-- rel是作对比的-->
    <span class="fa fa-home"></span>
    <span class="mui-tab-label">首页</span>
  </a>
  <a href="service.html" rel="external nofollow" rel="service.html" class="mui-tab-item">
    <span class="mui-icon iconfont icon-shop"></span>
    <span class="mui-tab-label">客服</span>
  </a>
  <a href="shopcart.html" rel="external nofollow" rel="shopcart.html class="mui-tab-item">
    <span class="mui-icon iconfont icon-gouwuche"><span class="mui-badge">5</span></span>
    <span class="mui-tab-label">购物车</span>
  </a>
  <a href="me.html" rel="external nofollow" rel="me.html" class="mui-tab-item">
    <span class="fa fa-user-circle-o"></span>
    <span class="mui-tab-label">我的</span>
  </a>
</nav>

var urlstr = location.href;　　　　//获取浏览器的url
 var urlstatus=false;　　
 $('#menu a').each(function() {
   if ((urlstr + '/').indexOf($(this).attr('rel')) > -1&&$(this).attr('rel')!='') {
      // 为当前点击的导航加上高亮，其余的移除高亮
      $(this).find('span').addClass('active');
      urlstatus = true;
    } else {
     $(this).removeClass('active');
    }
  });
 if (!urlstatus) {
   $("#menu a span").eq(0).addClass('active'); //默认首页图标高亮
 }