set different .htaccess rules

Hello all, I have problem with protecting files inside of folder. So, I have one folder with files inside and the idea is to be able to see those files (format is not important) only when you are logged in system. I can't use solutions like to set some wierd name so that actually user is hardly able to guess the real path to that file, something like http://site.com/files/we23h4hk234hjksdjrjkl23jfasdf Is there some trick with .htaccess to check some php value and set different rules if some another value in php is set or not. I know that you are able to set some php values in .htaccess, but as I said, is it possible to manipulate with them inside of .htaccess. Or if someone has some better solution, you are welcome to write it down :-) Regards, Dusan -- mob: + 46 70 044 9432 web: http://novakovicdusan.com Please consider the environment before printing this email.