Fail to attachform to layout

I am testing the dhtmlx package for my application. Having issue to attach form object to layout.

When i try to attach my form object to Layout or Accordion object, I always got java script error:-

The code to trigger the error:-

For your information, my dhtmlx version is “dhtmlxForm v.3.0 Standard edition build 110713”

Please advice. thanks in advance.

Please check … mon_errors

Hello, Olga.
I have the same problem

i checked this all and all is seem correct.