Required library edition:
Required library file: dhtmlxtree.js

move item (inside of tree)

• itemId - item Id
• mode - moving mode ('left','up','down','item_child','item_sibling','item_sibling_next','up_strict','down_strict')
• targetId - target Node in the 'item_child' or 'item_sibling' mode
• targetTree - used for moving between trees (optional)