Fixed is_bool / is_boolean bug

git-svn-id: file:///svn-source/pmgr/branches/surplus_account_20090815@579 97e9348a-65ac-dc4b-aefc-98561f571b83

site/models/transaction.php

@@ -488,7 +488,7 @@ class Transaction extends AppModel {
       $assign_ops = array();
     elseif (is_array($control['assign']))
       $assign_ops = $control['assign'];
-    elseif (is_boolean($control['assign']))
+    elseif (is_bool($control['assign']))
       $assign_ops = array('assign', 'create');
     else
       $this->INTERNAL_ERROR('Invalid control[assign] parameter');