Jquery实现的特效，用户留言的内容可以折叠起来，可以随时打开，可以设定显示的条数
第一步：
点击这里下载全部资源及源代码
第二步：
在网页<head>区添加以下代码
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript">
/*****************************************************
* Share JavaScript (http://www.ShareJS.com)
* 使用此脚本程序，请保留此声明
* 获取此脚本以及更多的JavaScript程序，请访问 http://www.ShareJS.com
******************************************************/
$(document).ready(function(){
//hide message_body after the first one
$(".message_list .message_body:gt(0)").hide();
//hide message li after the 5th
$(".message_list li:gt(4)").hide();
//toggle message_body
$(".message_head").click(function(){
$(this).next(".message_body").slideToggle(500)
return false;
});
//collapse all messages
$(".collpase_all_message").click(function(){
$(".message_body").slideUp(500)
return false;
});
//show all messages
$(".show_all_message").click(function(){
$(this).hide()
$(".show_recent_only").show()
$(".message_list li:gt(4)").slideDown()
return false;
});
//show recent messages only
$(".show_recent_only").click(function(){
$(this).hide()
$(".show_all_message").show()
$(".message_list li:gt(4)").slideUp()
return false;
});
});
</script>
<style type="text/css">
* {
margin: 0;
padding: 0;
}
body {
margin: 10px auto;
width: 570px;
font: 75%/120% Arial, Helvetica, sans-serif;
}
p {
padding: 0 0 1em;
}
/* message display page */
.message_list {
list-style: none;
margin: 0;
padding: 0;
width: 383px;
}
.message_list li {
padding: 0;
margin: 0;
background: url(images/message-bar.gif) no-repeat;
}
.message_head {
padding: 5px 10px;
cursor: pointer;
position: relative;
}
.message_head .timestamp {
color: #666666;
font-size: 95%;
position: absolute;
right: 10px;
top: 5px;
}
.message_head cite {
font-size: 100%;
font-weight: bold;
font-style: normal;
}
.message_body {
padding: 5px 10px 15px;
}
.collapse_buttons {
text-align: right;
border-top: solid 1px #e4e4e4;
padding: 5px 0;
width: 383px;
}
.collapse_buttons a {
margin-left: 15px;
float: right;
}
.show_all_message {
background: url(images/tall-down-arrow.gif) no-repeat right center;
padding-right: 12px;
}
.show_recent_only {
display: none;
background: url(images/tall-up-arrow.gif) no-repeat right center;
padding-right: 12px;
}
.collpase_all_message {
background: url(images/collapse-all.gif) no-repeat right center;
padding-right: 12px;
color: #666666;
}
</style>
第三步：
在网页<body>区添加以下代码
<ol class="message_list"> <li> <p class="message_head"><cite>someone:</cite> <span class="timestamp">1 minute ago</span></p> <div class="message_body"> <p>Hello Nick,<br /> <br /> This is the latest message display. The rest are collapsed by default</p> </div> </li> <li> <p class="message_head"><cite>nick:</cite> <span class="timestamp">2 minutes ago</span></p> <div class="message_body"> <p>message here</p> </div> </li> <li> <p class="message_head"><cite>someone:</cite> <span class="timestamp">1 day ago</span></p> <div class="message_body"> <p>message here</p> </div> </li> <li> <p class="message_head"><cite>nick:</cite> <span class="timestamp">2 days ago</span></p> <div class="message_body"> <p>message here</p> </div> </li> <li> <p class="message_head"><cite>someone:</cite> <span class="timestamp">3 days ago</span></p> <div class="message_body"> <p>message here</p> </div> </li> <li> <p class="message_head"><cite>nick:</cite> <span class="timestamp">5 days ago</span></p> <div class="message_body"> <p>message here</p> </div> </li> <li> <p class="message_head"><cite>someone:</cite> <span class="timestamp">6 days ago</span></p> <div class="message_body"> <p>message here</p> </div> </li> <li> <p class="message_head"><cite>nick:</cite> <span class="timestamp">7 days ago</span></p> <div class="message_body"> <p>message here</p> </div> </li> <li> <p class="message_head"><cite>someone:</cite> <span class="timestamp">8 days ago</span></p> <div class="message_body"> <p>message here</p> </div> </li> </ol> <p class="collapse_buttons"><a href="#" class="show_all_message">Show all message (9)</a> <a href="#" class="show_recent_only">Show 5 only</a> <a href="#" class="collpase_all_message">Collapse all</a></p> <br />
