*/
public void setContentHighlightingVisible(boolean visible) {
if (visible) {
if (m_highlighting == null) {
m_highlighting = new HighlightingBorder(
PositionBean.getInnerDimensions(m_referenceElement),
HighlightingBorder.BorderColor.red);
RootPanel.get().add(m_highlighting);
} else {
m_highlighting.setPosition(PositionBean.getInnerDimensions(m_referenceElement));