Pie chart - removing selection via script

I’m working on an overview page witch has 2 selectable pie charts. I use the .selectedData property of each to build a template repeater based on what was selected.
Now, there’s one more thing i’m having trouble with. For example when i select an element from the first piechart i want the selected element of the second piechart to get deselected. I can add a line to the script that will wipe the .selectedData from the second piechart…but the graphic wil still show the element as selected. Is there any way to also script a deselect the other piechart ?

you can use:

chart2 = event.source.parent.getComponent("Chart2")