jQuery实现类似淘宝购物车全选状态示例
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>我是投资者</title>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
<style type="text/css">*{margin:0;padding:0;color:#727272;font-size:12px; outline:none;}
table{ border-collapse:collapse; border-spacing:0; }
a{color:#3A3A3A; text-decoration:none; color:#575757;}
a:hover{ text-decoration:none;}
.L_user .mailspage{ background:#fff;}
.L_user .mailspage .mail{padding-bottom:25px;}
.L_user .mailspage .mail p{margin:0px 0 5px 5px; padding-top:5px;}
.L_user .mailspage .mail table{width:745px; text-align:center;}
.L_user .mailspage .mail .table_box{ width:745px;border:1px solid #DDDDDD;margin:0 0 0px 10px;}
.L_user .mailspage .mail .firsttr{border-top:none;}
.L_user .mailspage .mail td{ height:30px; line-height:30px;}
.L_user .mailspage .sendmsm {margin-top:25px;}
.L_user .mailspage .sendmsm div{margin:0 0 10px 40px;}
.L_user .mailspage .sendmsm div label{ width:50px; text-align:right; display:inline-block; vertical-align:middle;margin-right:5px;}
.L_user .mailspage .sendmsm div input{margin-right:5px; border:1px solid #ccc; height:20px; line-height:20px; padding-left:5px; vertical-align:middle; border-radius:5px;}
.L_user .mailspage .sendmsm div textarea{ width:270px; height:130px; vertical-align:top;border:1px solid #ccc; padding:5px; border-radius:5px;}
.L_user .mailspage .sendmsm div a{width:108px; height:35px; display:inline-block; background:url(../images/L_btn0615.jpg) no-repeat -8px -72px; vertical-align:middle;margin-right:10px;}
.L_user .mailspage .sendmsm div a:hover{ background-position:-8px -115px;}
.L_user .mailspage{width:768px; border:1px solid #E5E5E5; float:left; overflow:hidden;}
.L_user .mailspage .loantab{background:#fff;border-bottom:1px solid #E5E5E5; }
.L_user .mailspage .loantab a{width:127px; height:40px; border:1px solid #E5E5E5; border-bottom:none;display:inline-block; text-align:center; border-left:none; border-top:none; line-height:40px; color:#464646; font-weight:bold; }
.L_user .mailspage .loantab a.c{ background:#F4F4F4; color:#CF161C;}
.L_user .mailspage .mail .markbtn a{ width:64px; height:27px; background:url(../images/L_btn0615.jpg) no-repeat -4px -6px; display:inline-block; text-align:center; line-height:25px; vertical-align:middle;}
.L_user .mailspage .mail .markbtn a:hover{ background-position:-4px -37px;}
.L_user .mailspage .mail .firsttr{ background:#F9F9F9; border-bottom:1px solid #DDDDDD;border-top:1px solid #DDDDDD; height:20px; line-height:20px;}</style>
</head>
<body>
<div class="L_user clear-fix">
<div class="mailspage">
<div class="loantab"><a href="javascript:void(0)" class="c">收件箱</a><a href="javascript:void(0)">已发送</a><a href="javascript:void(0)">发信息</a></div>
<div class="mail">
<p class="markbtn"><a href="javascript:void(0)" class="deletebtn">删除</a><a href="javascript:void(0)">标记已读</a><a href="javascript:void(0)">标记未读</a></p>
<div class="table_box">
<table>
<tr id="titletr">
<td class="firsttr"><input type="checkbox" id="allcheckbox" /></td>
<td class="firsttr"><img src="images/L_mail.png" /></td>
<td class="firsttr">发件人</td>
<td class="firsttr">标题</td>
<td class="firsttr">发送时间</td>
</tr>
<tr>
<td><input type="checkbox" /></td>
<td>3</td>
<td>XXX</td>
<td>XXX</td>
<td>XXX</td>
</tr>
<tr>
<td><input type="checkbox" /></td>
<td>3</td>
<td>XXX</td>
<td>XXX</td>
<td>XXX</td>
</tr>
<tr>
<td><input type="checkbox" /></td>
<td>3</td>
<td>XXX</td>
<td>XXX</td>
<td>XXX</td>
</tr>
</table>
<p class="page">共0条<a href="javascript:void(0)">首页</a><a href="javascript:void(0)">上一页</a><a href="javascript:void(0)">下一页</a><a href="javascript:void(0)">尾页</a></p>
</div>
</div>
</div>
</div>
<script type="text/javascript">//删除选中：
$(".markbtn .deletebtn").click(function(){
$(".table_box tr").each(function(){
if($(this).find("input").attr("checked")&&$(this).index()!=0){
$(this).remove();
}
})
})
$("#allcheckbox").click(function(){
if($(this).attr("checked")){
$(".table_box td input").attr("checked","checked");
}else{
$(".table_box td input").attr("checked","")
}
})
$(".table_box input").not("#allcheckbox").click(function(){
$(".table_box input").not("#allcheckbox").each(function(){
if($(".table_box input[type='checkbox']:checked").not("#allcheckbox").length==$(".table_box tr").not("#titletr").length){
$("#allcheckbox").attr("checked","checked");
}else{
$("#allcheckbox").attr("checked","");
}
})
})</script>
</body>
</html>