New ads managment

[texthiller]

Hello i have other suggest for os class, after this:
http://forums.osclass.org/suggestions/new-upload-method/msg30452/#msg30452
http://forums.osclass.org/development/what-do-you-want-to-see-in-next-version-(3-1)-suggestion-time!/msg34915/#msg34915

in the next version is necessary a new of ads managment:
1) the users can choose when their ads will expire but this function is possible to disable by the administrator panel and the ads will expire when decide the site administration (for example after:15 days, 30 days, 90days, ecc)

2) after this period the ads becomes inactive but it visible in the users's panel and it is possible to renew.

Excuse me for my bad english.