用JQ写的一个简单的TAB选项效果，支持两个选项以上，扩展性良好
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script type="text/javascript" src="http://code.jquery.com/jquery-1.4.2.min.js"></script>
<title>无标题文档</title>
<script type="text/javascript">
$(document).ready(function () {
$(".tab-nav li").click(function (e) {
if (e.target == this) {
var panels = $(".tab-main div");
var tabs = $(this);
var index = $.inArray(this, $(this).parent().find("li"));
if (panels.eq(index)[0]) {
tabs.removeClass("cur").eq(index).addClass("cur");
panels.css("display", "none").eq(index).css("display", "block");
}
}
return false;
});
})
</script>
<style type="text/css">
li {
width: 200px;
cursor:pointer
}
</style>
</head>
<body>
<ul class="tab-nav">
<li class="cur">1</li>
<li>2</li>
<li>3</li>
</ul>
<div class="tab-main">
<div style="display:block"> 1 </div>
<div style="display:none"> 2 </div>
<div style="display:none"> 3 </div>
</div>
</body>
</html>