are configuration</xforms:message>
				<xforms:action ev:event="xforms-submit-done">
					<!-- set the symbol filesystem path and public URL -->
					<xforms:setvalue ref="instance('control-instance')/symbol_path"
						value="if (substring(instance('config')/images/absolute_path, -1) = '/') then concat(instance('config')/images/absolute_path, 'symbols/') else concat(instance('config')/images/absolute_path, '/symbols/')"/>
					<xforms:setvalue ref="instance('control-instance')/symbol_url" value="concat(ins