static function getServiceSelect($selected = -1)
 {
     $services = CustomerManagementDao::findAllServices();
     $output = '<select id="cm_plugin_service_id" name="cm_plugin_service_id"><option value=""></option>';
     foreach ($services as $service) {
         $selected_attr = $selected == $service['id'] ? ' selected="selected" ' : '';
         $output .= "<option value=\"{$service['id']}\" {$selected_attr}>{$service['name']}</option>";
     }
     $output .= '</select>';
     return $output;
 }
 function options()
 {
     plugin_push_current('CustomerManagement');
     if (access_has_global_level(plugin_config_get('view_customer_fields_threshold'))) {
         $options = array();
         foreach (CustomerManagementDao::findAllServices() as $service) {
             $options[$service['id']] = $service['name'];
         }
     }
     plugin_pop_current();
     return $options;
 }
    echo $group['id'];
    ?>
"><?php 
    echo $group['name'];
    ?>
</option>
	<?php 
}
?>
	</select> <br />
	<label for="service_id[]"><?php 
echo plugin_lang_get('services');
?>
</label> <select name="service_id[]" multiple="multiple">
	<?php 
foreach (CustomerManagementDao::findAllServices() as $service) {
    ?>
		<option value="<?php 
    echo $service['id'];
    ?>
"><?php 
    echo $service['name'];
    ?>
</option>
	<?php 
}
?>
	
	</select> 
</form>
<script>