Index: /branches/beta/data/class/SC_CartSession.php
===================================================================
--- /branches/beta/data/class/SC_CartSession.php	(revision 14676)
+++ /branches/beta/data/class/SC_CartSession.php	(revision 14730)
@@ -67,8 +67,7 @@
 	// ¼¡¤Ë³ä¤êÅö¤Æ¤ë¥«¡¼¥È¤ÎID¤ò¼èÆÀ¤¹¤ë
 	function getNextCartID() {
-		$max = count($_SESSION[$this->key]);
-		for($i = 0; $i < $max; $i++) {
-			$arrRet[] = $_SESSION[$this->key][$i]['cart_no'];
-		}
+        foreach($_SESSION[$this->key] as $key => $val){
+            $arrRet[] = $_SESSION[$this->key][$key]['cart_no'];
+        }
 		return (max($arrRet) + 1);		
 	}