一个不错的CSS模拟的按钮效果

代码如下：

<style type="text/css">
<!--
.btnOFF{padding:3px;border:1px outset;cursor:pointer;background-color: green;width:100px;height:16px;text-align:center;}
.btnON{padding:3px;border:1px inset;background-color: #CCCC33;width:100px;height:16px;text-align:center;color:red;}
-->
</style>

<script language="JavaScript">
<!--
function setEffect(link_id)
{
  var i;
  for(i=0;i<link.length;i++)
  {
    if(i != link_id)
    {
      link[i].className = "btnOFF";
    }
    else
    {
      link[i].className = "btnON";
    }
  }
}
//-->
</script>

<p align=center><span id="link" class="btnOFF" οnclick="setEffect(0)">Google</span><span id="link" class="btnOFF" οnclick="setEffect(1)">Baidu</span><span id="link" class="btnOFF" οnclick="setEffect(2)">Sina</span><span id="link" class="btnOFF" οnclick="setEffect(3)">Sohu</span><span id="link" class="btnOFF" οnclick="setEffect(4)">CSDN</span><span id="link" class="btnOFF" οnclick="setEffect(5)">CnBlogs</span></p>