Since Lease.number is a VARCHAR, it doesn't sort well. So I added a hidden column for Lease.id, which sorts better.

git-svn-id: file:///svn-source/pmgr/branches/invoice_receipt_20090629@192 97e9348a-65ac-dc4b-aefc-98561f571b83

site/views/elements/leases.ctp

@@ -2,6 +2,7 @@
 
 // Define the table columns
 $cols = array();
+$cols['LeaseID']   = array('index' => 'Lease.id',            'hidden' => true);
 $cols['Lease']     = array('index' => 'Lease.number',        'formatter' => 'id');
 $cols['Unit']      = array('index' => 'Unit.name',           'width' => '50',  'align' => 'center');
 $cols['Customer']  = array('index' => 'Customer.name',       'formatter' => 'longname');
@@ -26,4 +27,5 @@ else {
   $jqGrid_options += array('search_fields' => array('Customer', 'Unit'));
 }
 
+$jqGrid_options['sort_column'] = 'LeaseID';
 echo $this->element('jqGrid', $jqGrid_options);