 						net.addEdge(edge)
 						$scope.$apply() # Quick save net to storage
 
+				selectedNode = null
 				restart()
 
 			# show node text

				.style('marker-end', (edge) -> if edge.right then 'url(#endArrow)' else '')
				.on 'mousedown', (edge) ->
					mouseDownEdge = edge
					restart()

			# remove old links

				d3.select(this).attr 'transform', '' # unenlarge target node

			.on 'mousedown', (node) ->
				# select node
				mouseDownNode = node
				if mouseDownNode == selectedNode
					selectedNode = null
				else
					selectedNode = mouseDownNode

				# reposition drag line
				drag_line.style('marker-end', 'url(#endArrow)').classed('hidden', false).attr('d', 'M' + mouseDownNode.x + ',' + mouseDownNode.y + 'L' + mouseDownNode.x + ',' + mouseDownNode.y)
				restart()
