Update system/libraries/Javascript.php
diff --git a/system/libraries/Javascript.php b/system/libraries/Javascript.php
index 21c9e11..b56dd98 100644
--- a/system/libraries/Javascript.php
+++ b/system/libraries/Javascript.php
@@ -723,7 +723,14 @@
 		{
 			if (is_object($result))
 			{
-				$json_result = (array)$result;
+                            if (is_callable( array( $result, "result_array" ) ))
+                            {
+                                $json_result = $result->result_array();
+                            }
+                            else
+                            {
+                                $json_result = (array)$result;
+                            }
 			}
 			elseif (is_array($result))
 			{