Outsystems Javascript API

Where I can find the documentation of the outsystems javascript api? something like osAjaxBackend.BindBeforeAjaxRequest, osAjaxBackend.BindAfterAjaxRequest and so on.
I don't think there is any, as afaik, this are unsupported stuff, and may change between platform versions.
Well, thanks for the information @killan, how about a list of components that uses this javascript api? i'd like to expirement and play with it.
I'd say RichWidgets is a good start. You can't open it directly, but you can clone it and take a look.