<body id='order'>
<div class="sendbox">
<div class="sendtit">
<h2>书籍订购</h2>
<input type="button" id="order_close" class="sendbtn" value="" onclick="window.history.back();return false;">
<body id='order'>
<div class="sendbox">
<div class="sendtit">
<h2>书籍订购</h2>
<input type="button" id="order_close" class="sendbtn" value="" onclick="window.history.back();return false;">