Просмотр поста #458514: У Вас есть один вопрос? - Тогда задайте его тут (v.4)

Тут такое дело, включил показ ошибок в хтакесе и мне сразу стало выбивать
Warning: Cannot modify header information - headers already sent by (output started at /home/wapkodr/public_html/str/online.php:1) in /home/wapkodr/public_html/incfiles/head.php on line 23

Warning: Cannot modify header information - headers already sent by (output started at /home/wapkodr/public_html/str/online.php:1) in /home/wapkodr/public_html/incfiles/head.php on line 24

Warning: Cannot modify header information - headers already sent by (output started at /home/wapkodr/public_html/str/online.php:1) in /home/wapkodr/public_html/incfiles/head.php on line 25

Warning: Cannot modify header information - headers already sent by (output started at /home/wapkodr/public_html/str/online.php:1) in /home/wapkodr/public_html/incfiles/head.php on line 26

Warning: Cannot modify header information - headers already sent by (output started at /home/wapkodr/public_html/str/online.php:1) in /home/wapkodr/public_html/incfiles/head.php on line 27
Посмотрел эти сроки в хеад
вот они,

header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
header("Cache-Control: no-cache, must-revalidate");
header("Pragma: no-cache");
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . "GMT");
header((stristr($agn, "msie") && stristr($agn, "windows")) ? 'Content-type: text/html; charset=UTF-8' : 'Content-type: application/xhtml+xml; charset=UTF-8');