Index: temp/trunk/data/downloads/module/mdl_epsilon.php
===================================================================
--- temp/trunk/data/downloads/module/mdl_epsilon.php	(revision 7538)
+++ temp/trunk/data/downloads/module/mdl_epsilon.php	(revision 7539)
@@ -218,6 +218,6 @@
 	
 	// ¥¯¥ì¥¸¥Ã¥È
-	$arrCredit["credit"][] = substr($credit, 0, 1);
-	$arrCredit["credit"][] = substr($credit, 1, 1);
+	if(substr($credit, 0, 1)) $arrCredit["credit"][] = 1;
+	if(substr($credit, 1, 1)) $arrCredit["credit"][] = 2;
 	$objFormParam->setParam($arrCredit);