New Post: javascript support

javascript menu sounds like a complex thing to add support for...

If I understand it correctly you need something like a dropdown menu on specific element...
I would do it using WinForms controls:

1. add left mouse click handler on the panel/label.
2. add id to the element you want the dropdown on
3. on mouse click get the rectangle of the element by id and check if mouse was clicked in it
4. show the dropdown
   

or you can use "a" element click override...

hope it help.