i got following errors.
my login is working fine at localhost.
but it is not working on server.
please help me.

Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at /home/rnzsnet/public_html/archler.com/demo1/admin/verify_admin.php:22) in /home/rnzsnet/public_html/archler.com/demo1/admin/verify_admin.php on line 38

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/rnzsnet/public_html/archler.com/demo1/admin/verify_admin.php:22) in /home/rnzsnet/public_html/archler.com/demo1/admin/verify_admin.php on line 38

Warning: Cannot modify header information - headers already sent by (output started at /home/rnzsnet/public_html/archler.com/demo1/admin/verify_admin.php:22) in /home/rnzsnet/public_html/archler.com/demo1/admin/verify_admin.php on line 41