if (ChainBuilderAgent.DEBUG) {
if (ChainBuilderAgent.DEBUG > 3) {
	private void mousePressedSelectionTarget(PNode node) {		if (ChainBuilderAgent.DEBUG) {			System.err.println("pressing on selection target..");			System.err.println("mousePressedSelectionTarget.... setting link state to changing point");		}		selectionTarget = (LinkSelectionTarget) node;		selectionTarget.getLink().setSelected(true);		linkState = LINK_CHANGING_POINT;	}