ludo/jquery-treetable — pull request #40 by Kezzer (2012-03-16 16:21:32+00:00)
Title: Collapsing/expanding nodes of a particular class

... first occurrence of a particular node. For example, if you were to do $("#myTreeTable .level-1").collapse(); then it would only apply to the first occurrence of that node. Likewise for expanding. This commit addresses this issue, meaning that you can, if you like, collapse or expand all nodes of a particular class.