on third party libs

Hi, guys.
You’ve created really outstanding stuff down here. All these components look and perform very well. I’m just curious about one thing.
Why don’t you use any third party js-libraries like jQuery or Prototype?
I guess i know the answer but i will be appriciate for your arguments.
Thanks in advance.

jQuery works on different level of abstraction. It is heavily relay on html and css elements, while dhtmlx components are more high level abstraction - ui components, which can be used without any custom html|css

Basically both libs can work together and complement each other.