zui 模态框弹出后第二次就无法弹出问题?报错

<button class="btn btn-primary" id="add"  >弹出框测试</button>
	
<div class="modal fade" id="dialogModal" tabindex="-1" role="dialog" aria-labelledby="tsModalTitle" aria-hidden="true">
</div><!-- /.modal -->
<script type="text/javascript">
$(function(){
  $("#add").click(function(){
	$("#dialogModal").modal({
		show:true,
		remote:"./1.html",
		backdrop:'static'
	})
   })
})
</script>

1.html

<div class="modal-dialog">
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
        <h4 class="modal-title" id="modalTitle">标题</h4>
      </div>
      <div class="modal-body">
        <h1>Hello World!</h1>
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-default" data-dismiss="modal">关闭</button>
        <button type="button" class="btn btn-primary">保存</button>
      </div>
    </div><!-- /.modal-content -->
  </div><!-- /.modal-dialog -->

求各位大侠告知什么原因啊。