,   3     merchant
  tatarin(manito),         

   https://merchant.webmoney.ru            
     index.php    
http://-./pay/webmoney.php   - result url    "    ".    
http://-./pay/index.php?act=da Success URL POST
http://-./pay/index.php?act=fail Fail URL POST
    MD5  
  2        webmoney.php  index.php
 webmoney.php   ,       
   ya.php
  
     gdztoti.ru
 