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