http://owebmoney.ru/...les/login.shtml - инструкция
$xml="
<request>
<siteHolder>$mywmid</siteHolder>
<user>".$_POST['WmLogin_WMID']."</user>
<ticket>".$_POST['WmLogin_Ticket']."</ticket>
<urlId>".$urlid."</urlId>
<authType>".$_POST['WmLogin_AuthType']."</authType>
<userAddress>".$_POST['WmLogin_UserAddress']."</userAddress>
</request>
";