How to reduce log file size?

I have a problem about log of transection file. How do I set up automatic to reduce size of log file?Have a look at these resources :-
http://www.support.microsoft.com/?id=256650 INF: How to Shrink the SQL
Server 7.0 Tran Log
http://www.support.microsoft.com/?id=317375 Log File Grows too big
http://www.support.microsoft.com/?id=110139 Log file filling up
http://www.mssqlserver.com/faq/logs-shrinklog.asp Shrink File
http://www.support.microsoft.com/?id=315512 Considerations for Autogrow
and AutoShrink
http://www.support.microsoft.com/?id=272318 INF: Shrinking Log in SQL
Server 2000 with DBCC SHRINKFILE
http://www.support.microsoft.com/?id=317375 Log File Grows too big
http://www.support.microsoft.com/?id=110139 Log file filling up
http://www.mssqlserver.com/faq/logs-shrinklog.asp Shrink File
http://www.support.microsoft.com/?id=315512 Considerations for Autogrow
and AutoShrink
HTH
Ryan Waight, MCDBA, MCSE
"Mesak" <anonymous@.discussions.microsoft.com> wrote in message
news:FC013E7B-E4ED-4922-9B19-1967FA02C6AC@.microsoft.com...
> I have a problem about log of transection file. How do I set up automatic
to reduce size of log file?