<form action="http://merchant.weldexpay.com/">
    <input type="hidden" name="public_key" value="Публичный_Ключ">
    <input type="text" name="account" placeholder="Идентификатор счета">
    <input type="text" name="sum" placeholder="Сумма">
    <input type="hidden" name="desc" value="Описание">
    <input type="submit" value="Пополнить">
    </form>  

CREATE TABLE IF NOT EXISTS `weldexpay_payments` (
  `id` int(10) NOT NULL AUTO_INCREMENT,
  `weldexID` varchar(255) NOT NULL,
  `account` varchar(255) NOT NULL,
  `sum` float NOT NULL,
  `itemsCount` int(11) NOT NULL DEFAULT '1',
  `dateCreate` datetime NOT NULL,
  `dateComplete` datetime DEFAULT NULL,
  `status` tinyint(4) NOT NULL DEFAULT '0',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB  DEFAULT CHARSET=utf8 AUTO_INCREMENT=1 ;