def question
			self.survey.node_maps.select { |i|
				i.node == self
			}.collect { |node_map|
				if node_map.parent && node_map.parent.node
					# Question is not the next parent - recurse!
					if node_map.parent.node.class.ancestors.include?(::ActiveRecordSurvey::Node::Answer)
						node_map.parent.node.question
					else
						node_map.parent.node
					end
				# Root already
				else
					nil
				end
			}.first
		end
def question
			self.survey.node_maps.select { |i|
				i.node == self
			}.collect { |node_map|
				if node_map.parent && node_map.parent.node
					# Question is not the next parent - recurse!
					if node_map.parent.node.class.ancestors.include?(::ActiveRecordSurvey::Node::Answer)
						node_map.parent.node.question
					else
						node_map.parent.node
					end
				# Root already
				else
					nil
				end
			}.first
		end
Returns the question that preceeds this answer