怎么在附件的图中，我评论完，这个modal框自动关闭
<div id="modal" class="mui-modal bm_modal">
<header class="mui-bar mui-bar-nav">
<a class="mui-icon mui-icon-close mui-pull-right" href="#modal"></a>
<h1 class="mui-title">我要报名</h1>
</header>
<div class="mui-content" style="height: 100%;">
<div class="bm_form">
<form>
<p>
<label>姓名：</label>
<input type="text" />
</p>
<p>
<label>手机：</label>
<input type="text" />
</p>
<p>
<label>公司：</label>
<input type="text" />
</p>
<p>
<label>职务：</label>
<input type="text" />
</p>
<p>
<button type="button" class="baoming_finish_btn">提交</button>
</p>
</form>
</div>
</div>
</div>
点击评论提交，这个modal框自己缩下去
