删除按钮触发模态框

<!--确认删除-->
	<div id="deleteModal" class="modal hide fade" tabindex="-1"
		role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
		<div class="modal-header">
			<h4 id="myModalLabel">操作确认</h4>
			<a class="close" data-dismiss="modal" aria-hidden="true"
				href="javascript:void();">×</a>
		</div>
		<div class="modal-body">
			<i class="Hui-iconfont">&#xe688;</i> 确认删除选中的项？
		</div>
		<div class="modal-footer">
			<div class="col-xs-6">
				<button class="btn btn-primary" id="deleteConfirm">确定</button>
			</div>
			<div class="col-xs-3">
				<button class="btn btn-primary" data-dismiss="modal"
					aria-hidden="true">取消</button>
			</div>
		</div>
	</div>

	<!--点击删除按钮触发删除操作-->
			$("#deletePostalShift").bind("click", function() {
				if ($("tbody input[type='checkbox']:checked").length == 0) {
					layer.msg('请选择要删除的项');
					return;
				}
				$("#deleteModal").modal('show');
			});