jQuery treeview

Sample 1 - default, right-click to remove items

Folder 1
- Item 1.1
Folder 2
- Subfolder 2.1
  - File 2.1.1
  - File 2.1.2
  - File 2.1.3
  - Folder 3 (closed at start)
    - File 3.1
  - File 2.1.4
  - File 2.1.5
  - File 2.1.6
- File 2.2
Folder 3 (closed at start)
- File 3.1
File 4

Folder 1
- Item 1.1
Folder 2
- Subfolder 2.1
  - File 2.1.1
  - File 2.1.2
  - File 2.1.3
  - Folder 3 (closed at start)
    - File 3.1
  - File 2.1.4
  - File 2.1.5
  - File 2.1.6
- File 2.2
Folder 3 (closed at start)
- File 3.1
File 4