growing tran log file

I have a database of 22 gb in sql 2000, my database option is set to full recovery mode, the problem i'm having is the tran log is growing too fast, this morning it was 24 gb, more than the database size. Can anyone help how I can keep it in a managable size?

Thanks in advance!!

take tranlog backup often. every 30 mins atleast

ok, thanks, i will try that.