I used the Split Pane to produce some navigation pages.
There was a tree element in the Left Pane and a Variable Pane within some common Panes in the Right Pane.
It works well now when I click a tree item the Right Pane display a pane what I want.
But I found that it shows dislocation in the Chrome and the IE9.
The Panes in the Variable Pane which should be displayed in the Right Pane were displayed outside the whole Split Pane.