Interactive category picker/selector?
I would appreciate if anyone could guide my point by point on how one could create a category picker just like gumtree (preferably in jquery):
Specifically the points
- How clicking on a category opens another to the right
- How clicking on a category appends a variable like "#cat-10201" into the url (and vice versa)
- How css lists are used instead of form select menus (making it easily styled)
- How clicking on a deep subcategory automatically preselects all parent categories