How to access calendar using javascript?

[gaoxiang]

On Thursday 28 June 2012 15:46:09 qasdfgtyuiop wrote:
> I want to let my widget add some events to the calendar.  But I can
> not find the api doc, where can I find them?
> I have read these tutorials/documentations but I find nothing helpful:
> 
> http://techbase.kde.org/Development/Tutorials/Plasma/JavaScript/API-DataEngi
> nesServices
> http://techbase.kde.org/Development/Tutorials/Plasma/JavaScript/API

Anyone can help?  Or is there any project written in qml that access calendar?  
I can get some information about these codes.
Thanks