TreeGrid文档错误

[GoogleCodeExporter]

append方法的文档：这么写的：Append nodes to a parent node. The 
'param' parameter contains following properties:
parent: DOM object, the parent node to append to, if not assigned, append as 
root nodes.
data: array, the nodes data.
但是，parent属性应该是node id。

Original issue reported on code.google.com by catsti...@gmail.com on 26 Nov 2011 at 3:50