-<% include('/elements/tr-select-agent.html', $cust_main->agentnum,
- 'label' => "<B>${r}Agent</B>",
- 'empty_label' => 'Select agent',
+<% include('/elements/tr-select-agent.html',
+ 'curr_value' => $cust_main->agentnum,
+ 'label' => "<B>${r}Agent</B>",
+ 'empty_label' => 'Select agent',
+ 'disable_empty' => ( $cust_main->agentnum ? 1 : 0 ),