browser block popup สามารถใช้ script หรือโค้ดไหนได้มั่งครับ

protected void Timer2_Tick(object sender, EventArgs e)
        {
           
            Page.ClientScript.RegisterStartupScript(this.GetType(), "OpenWindow", "window.open('http://www.google.com','_blank');", true);
            Timer2.Enabled = false;

            Response.Write("<script>");
            Response.Write("window.open('test.aspx','_blank')");
            Response.Write("</script>"); 

            
        }