<script type="text/javascript" src="/js/jquery.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("input").focus(function(){
$("input").css("background-color","#FFFFCC");
$("input").blur(function(){
$("input").css("background-color","#D6D6FF");
Enter your name: <input type="text" />
<p>请在上面的输入域中点击,使其获得焦点,然后在输入域外面点击,使其失去焦点。</p>