Index: pi1/class.tx_templavoila_pi1.php
===================================================================
--- pi1/class.tx_templavoila_pi1.php	(revision 32387)
+++ pi1/class.tx_templavoila_pi1.php	(working copy)
@@ -500,6 +500,9 @@
 
 				// For each DS element:
 			foreach($DSelements as $key => $dsConf)	{
+					// Store key of DS element being handled in global register
+				$GLOBALS['TSFE']->register['tx_templavoila_pi1.current_field'] = $key;
+
 						// Array/Section:
 				if ($DSelements[$key]['type']=='array')	{
 					/* no DS-childs: bail out