Index: temp/trunk/data/downloads/module/mdl_epsilon.php
===================================================================
--- temp/trunk/data/downloads/module/mdl_epsilon.php	(revision 7421)
+++ temp/trunk/data/downloads/module/mdl_epsilon.php	(revision 7422)
@@ -61,7 +61,10 @@
 	if(count($objPage->arrErr) == 0) {
 		
-		$convenience = $_POST["convenience"][0];
-		foreach($_POST["convenience"] as $key => $val){
-			$convenience .= "," . $val;
+		// ÍøÍÑ¥³¥ó¥Ó¥Ë¤Ë¥Á¥§¥Ã¥¯¤¬Æþ¤Ã¤Æ¤¤¤ë¾ì¹ç¤Ë¤Ï¡¢¥«¥ó¥Þ¶èÀÚ¤ê¤ËÊÔ½¸¤¹¤ë
+		if(count($_POST["convenience"]) > 0){
+			$convenience = $_POST["convenience"][0];
+			foreach($_POST["convenience"] as $key => $val){
+				$convenience .= "," . $val;
+			}
 		}