Hides sidebar node or nodes with id.
hide(id1, [id2], ...)

id | string, id of the sidebar node

Returns integer.

#### Description

The node(s) must exists in the .nodes array of the sidebar or its nested nodes. The node is identified by the .id property. The method will set .hidden property of the node to true. It returns the number of hidden nodes that were show before.
If you have defined object in the following way: $('#sidebar').w2sidebar({ name : 'sidebar', img : 'icon-page', nodes: [ { id: 'id-1', text: 'Level 1' }, { id: 'id-2', text: 'Level 2' }, { id: 'id-3', text: 'Level 3' } ] }); You can: w2ui['sidebar'].hide('id-1');