trace(_thumbArea.getBoxHeight()); // 108
trace(_xml.verticalThumbSpacing); // 4
var shiftValue:int = _thumbArea.getBoxHeight() + _xml.verticalThumbSpacing;
trace(shiftValue); //1084
trace(_thumbArea.getBoxHeight()); // 108
trace(_xml.verticalThumbSpacing); // 4
var shiftValue:int = _thumbArea.getBoxHeight() + _xml.verticalThumbSpacing;
trace(shiftValue); //1084