Work on HTML invoice and internal logic

application/classes/ormosb.php

@@ -129,7 +129,7 @@ abstract class ORMOSB extends ORM {
 		if ($this->_changed)
 			foreach ($this->_changed as $c)
 				if ($this->_table_columns[$c]['data_type'] == 'blob') {
-					$this->$c = $this->blob($this->$c,TRUE);
+					$this->_object[$c] = $this->blob($this->_object[$c],TRUE);
 
 					// We need to reset our auto_convert flag
 					if (isset($this->_table_columns[$c]['auto_convert']))