function printFieldInterface($fieldname, $prefix)
    {
        switch ($fieldname) {
            case 'params':
                ?>
				<div class="indepfield-options" data-indeptype="select">
					<?php 
                Custom_Field::printParamsSelect($prefix, $this->getValue('params'));
                ?>
				</div>
				<?php 
                break;
            default:
                return parent::printFieldInterface($fieldname, $prefix);
        }
    }