art.dialog 팝업 창

//art.dialog    
function openadd() {
  art.dialog({
      id: 'dg_view1234',
      title: '      ',
      iframe: 'pub_code_h_view.aspx?code_type=null',
      width: 660, height: 300, lock: true
  }).close(function () {
      var rest = art.dialog({ id: 'dg_view1234' }).data.iframe.document.getElementById('b_change');
      if (rest != null) {
          if (rest.value == "1") {
              $get("btn_refresh").click();
          }
      }
  });
} 

//    
<asp:Button ID="btn_save" Text="  " runat="server" CssClass="btn width2" OnClientClick="return check_mustinput_ex()" OnClick="btn_save_Click" />

function check_mustinput() {
  var b2 = new Array('    ', '    ');
  var ctl1 = document.getElementById("<%=txtcode_type.ClientID%>");
  var ctl2 = document.getElementById("<%=txttype_name.ClientID%>");

  var b1 = new Array(ctl1, ctl2);
  return checkisnull(b1, b2);
}

function check_mustinput_ex() {
  if (check_mustinput()) {
      show_waiting();
      return true;
  } else {
      return false;
  }
}