[Bindable]
[Embed(source="logo.jpg")]
public var iconSymbol1:Class;
[Bindable]
[Embed(source="logo.jpg")]
public var iconSymbol2:Class;
private function setIcons():void {
myTree.setItemIcon(myTree.dataProvider.getItemAt(0),iconSymbol1, iconSymbol2);
myTree.setItemIcon(myTree.dataProvider.getItemAt(1),iconSymbol2, null);
}