	public function editspeed() {
        global $db;

        if (empty($this->params['id'])) return false;
        $calcname = $db->selectValue('shippingcalculator', 'calculator_name', 'id='.$this->params['id']);
        $calc = new $calcname($this->params['id']);
        assign_to_template(array(
            'calculator'=>$calc
        ));
		
    }
The software constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.