How can i close the popup window and redirect to the parent page using modal popup

Here is my code for redirecting page. Pop up is getting closed but it is not redirecting.
 public static void Close(Page page, object result)
    {
          page.Response.ClearContent();

            var sb = new StringBuilder();
            sb.Append("<html>");
            sb.Append("<head>");
            sb.Append("if (parent && parent.DayPilot && parent.DayPilot.ModalStatic) {");
            sb.Append("parent.DayPilot.ModalStatic.result = " +
                      ...