Make the search-by-tag box an autocomplete widget
Close autocomplete upon enter, search using lowercased tags
Get tag names from the existing tid_to_tname array
Functional D'n'D
Keep children alphabetically sorted when doing D'n'D
Fixed incorrect onclick handler
Take care of the case where the selected item is moved around
Fixed D'n'D accept function
Better management of D'n'D
Fixed levels not being updated upon D'n'D