asp.net后台调用js方法 - .NET技术 / ASP.NET

<script type="text/javascript" src="js/Dialog.js"></script>
<script type="text/javascript">
  function zOpenD()
  {
  var diag=new Dialog("Diag1");
  diag.Width=900;
  diag.Heigth=400;
  diag.Title="弹出";
  diag.URL="http://www.163.com/";
  diag.MessageTitle="弹出窗口";
  diag.Message="tt";
  diag.OKEvent=zAlert;
  diag.show();
  }
   
  function zAlert()
  {
Dialog.alert("用户名或密码错误！！");
  }
</script>


 <input id="Button1" type="button" value="button" onclick="zAlert()" /> 在前台调用没问题

在后台用ClientScript.RegisterStartupScript（）调用，弹出窗口的同时出现：“Internet Explorer无法打开Internet站点http://localhost:1315/admin/login.aspx 已终止操作”提示
 BusinessModel businessModel = new BusinessModel();
  Execute_Status result = Execute_Status.Failed;
  try
  {

  byte[] sourceByte = Compress.EncryptString(password.Value);
  result = businessModel.checkSuperUserLogin(userid.Value, sourc