用js控制css的不错的方法

<style type=text/css> #tabs UL {DISPLAY: inline; PADDING-LEFT: 0px; MARGIN-LEFT: 10px; WHITE-SPACE: nowrap} #tabs UL LI {BORDER-RIGHT: #999 1px solid; PADDING-RIGHT: 8px; BORDER-TOP: #999 1px solid; DISPLAY: inline; PADDING-LEFT: 12px; FONT-SIZE: x-small; BACKGROUND: #eee; PADDING-BOTTOM: 0px; BORDER-LEFT: #999 1px solid; MARGIN-RIGHT: 2px; PADDING-TOP: 3px; BORDER-BOTTOM: #4bcb66 0px solid; FONT-FAMILY: verdana; WHITE-SPACE: nowrap} #tabs UL LI.active_web {BORDER-RIGHT: #4bcb66 1px solid; PADDING-RIGHT: 8px; BORDER-TOP: #4bcb66 1px solid; PADDING-LEFT: 12px; FONT-WEIGHT: bold; FONT-SIZE: x-small; BACKGROUND: #f7fdf6; PADDING-BOTTOM: 0px; BORDER-LEFT: #4bcb66 1px solid; PADDING-TOP: 6px; BORDER-BOTTOM: #f7fdf6 1px solid; FONT-FAMILY: verdana; WHITE-SPACE: nowrap} #tabs UL LI.active_news {BORDER-RIGHT: #d3bf8e 1px solid; PADDING-RIGHT: 8px; BORDER-TOP: #d3bf8e 1px solid; PADDING-LEFT: 12px; FONT-WEIGHT: bold; FONT-SIZE: x-small; BACKGROUND: #fff9eb; PADDING-BOTTOM: 0px; BORDER-LEFT: #d3bf8e 1px solid; PADDING-TOP: 6px; BORDER-BOTTOM: #fff9eb 1px solid; FONT-FAMILY: verdana; WHITE-SPACE: nowrap} </style> <script>// JScript source code <!– function cnTable(){ //document.getElementById(‘cnTable’).style.display = “block”; //document.getElementById(‘enTable’).style.display = “none”; //document.getElementById(‘bigTable’).style.display = “none”; //document.getElementById(‘otherTable’).style.display = “none”; l1.className=”active_web”;l2.className=””;l3.className=””;l4.className=””; cnSp.className=”blue_text”;enSp.className=””;bigSp.className=””;otherSp.className=””; } function enTable(){ //document.getElementById(‘cnTable’).style.display = “none”; //document.getElementById(‘enTable’).style.display = “block”; //document.getElementById(‘bigTable’).style.display = “none”; //document.getElementById(‘otherTable’).style.display = “none”; l1.className=””;l2.className=”active_web”;l3.className=””;l4.className=””; cnSp.className=””;enSp.className=”blue_text”;bigSp.className=””;otherSp.className=””; } function bigTable(){ //document.getElementById(‘cnTable’).style.display = “none”; //document.getElementById(‘enTable’).style.display = “none”; //document.getElementById(‘bigTable’).style.display = “block”; //document.getElementById(‘otherTable’).style.display = “none”; l1.className=””;l2.className=””;l3.className=”active_web”;l4.className=””; cnSp.className=””;enSp.className=””;bigSp.className=”blue_text”;otherSp.className=””; } function otherTable(){ //document.getElementById(‘cnTable’).style.display = “none”; //document.getElementById(‘enTable’).style.display = “none”; //document.getElementById(‘bigTable’).style.display = “none”; //document.getElementById(‘otherTable’).style.display = “block”; l1.className=””;l2.className=””;l3.className=””;l4.className=”active_web”; cnSp.className=””;enSp.className=””;bigSp.className=””;otherSp.className=”blue_text”; } –> </script> <DIV id=”tabs”><SPAN id=”logo”></SPAN> <UL><LI id=”l1″ class=”active_web”> <SPAN class=”active_web_text” id=cnSp> <A href=”#” onclick=”javascript:cnTable()” onfocus=”blur()”>中文搜索</a></SPAN> <LI id=”l2″ > <SPAN id=enSp > <A href=”#” onclick=”javascript:enTable()” onfocus=”blur()”>英文搜索</A></SPAN> <LI id=”l3″ > <SPAN id=bigSp > <A href=”#” onclick=”javascript:bigTable()” onfocus=”blur()”>国内门户</A></SPAN> <LI id=”l4″ > <SPAN id=otherSp > <A href=”#” onclick=”javascript:otherTable()” onfocus=”blur()”>综合其它</A></SPAN></LI> </UL> </DIV>

[Ctrl+A 全选 注:引入外部Js需再刷新一下页面才能执行]