js导航栏单击事件背景颜色变换
<head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>无标题文档</title> <script type="text/javascript"> function change_bg(obj) { var a=document.getElementById("Menu").getElementsByTagName("a"); for(var i=0;i<a.length;i++) { a[i].className=""; } obj.className="current"; } </script> <style type="text/css"> body{ font-size:17px; } .current{ background:red; } #container ul { list-style-type:none; } #container ul li { float:left; margin-right:3px; } #container ul li a{ text-decoration:none; color:#000; } </style> </head> <body> <div id="container"> <ul id="Menu"> <li><a href="javascript:" onclick="change_bg(this)" class="current">Menu1</a></li> <li><a href="javascript:" onclick="change_bg(this)">Menu2</a></li> <li><a href="javascript:" onclick="change_bg(this)">Menu3</a></li> <li><a href="javascript:" onclick="change_bg(this)">Menu4</a></li> <li><a href="javascript:" onclick="change_bg(this)">Menu5</a></li> </ul> </div> </body> </html>