$form->addInput(array('type'=>'hidden','name'=>'id','value'=>$cl_invoice_id));
$form->addInput(array('type'=>'combobox',
'name'=>'delete_invoice_entries',
$form->addInput(array('type'=>'hidden','name'=>'id','value'=>$cl_invoice_id));
$form->addInput(array('type'=>'combobox',
'name'=>'delete_invoice_entries',