How to unselect all nodes?

[jianspf]

How to unselect all nodes in a tree?I can't find a proper method to do it.
I built a contextMenu in a tree, every node was selected when I run contextmenu on right click the every node.
How can I unselect the others when I right click one node?

[jarry]

Please call 'select' method to select a node.

Code:

onContextMenu: function(e, node){
	$(this).tree('select', node.target)
},