Took some of the new learnings from invoice generation and put into receipt generations. Also moved some shared functions to pmgr.js, and renamed things for consistency.

git-svn-id: file:///svn-source/pmgr/branches/invoice_receipt_20090629/site@239 97e9348a-65ac-dc4b-aefc-98561f571b83

controllers/units_controller.php

@@ -222,8 +222,9 @@ class UnitsController extends AppController {
     if (isset($unit['CurrentLease']['id']) &&
 	!isset($unit['CurrentLease']['close_date'])) {
       $this->sidemenu_links[] =
-	array('name' => 'Payment', 'url' => array('action' => 'payment',
-						  $id));
+	array('name' => 'Payment', 'url' => array('controller' => 'customers',
+						  'action' => 'receipt',
+						  $unit['CurrentLease']['customer_id']));
     }
 
     // Prepare to render.