bootstrap模态框，等待遮盖层

<div class="modal fade" id="loadingModal">
<div style="width: 200px;height:20px; z-index: 20000; position: absolute; text-align: center; left: 50%; top: 50%;margin-left:-100px;margin-top:-10px">
<div class="progress progress-striped active" style="margin-bottom: 0;">
<div class="progress-bar" style="width: 100%;"></div>
</div>
<h5 style="color:black"> <strong>正在加载...查询可融资金额概需花费2-5分钟，请稍等！</strong> </h5>
</div>
</div>

打开和隐藏：

$("#loadingModal").modal('show');
$('#loadingModal').modal('hide');