[RESOLVED] header error

[verN]

hi i am getting the following error and do not know what it means.

Warning: Cannot modify header information - headers already sent by (output started at d:\Project\htdocs\seminarmanager\includes\back_header.php:99) in d:\Project\htdocs\seminarmanager\cms_seminars\kegmember\create_kegmember.php on line 128

line 128:

$created = "../kegmember/KEGmember_Created.php?id=".$user;

	            header("Location: $created");

i am using an include function at the top and bottom of the page. like this
include ('../../includes/back_header.php');
include ('../../includes/back_footer.php');
when i comment out the following line it works //include ('../../includes/back_header.php'); otherwise i get the error at the top.

header is used when someone fills in the form successfully and get directed to another page. The form worked successfully but when i added the includes it doeson't.

anyone help this is buuging me

thnaks

[suntra]

http://www.php.net/header

« Remember that header() must be called before any actual output is sent, either by normal HTML tags, blank lines in a file, or from PHP. It is a very common error to read code with include(), or require(), functions, or another file access function, and have spaces or empty lines that are output before header() is called. The same problem exists when using a single PHP/HTML file. »

[verN]

thanks for the link but i am still unsure and don't know what to do

[suntra]

« Warning: Cannot modify header information - headers already sent by (output started at d😛rojecthtdocsseminarmanagerincludesback_header.php:99) in d😛rojecthtdocsseminarmanagercms_seminarskegmembercreate_kegmember.php on line 128 »

Check line 99 in back_header.php.

[verN]

line 99 has javascript in with the following line
var windowedge=ie4 && !window.opera? iecompattest().scrollTop+iecompattest().clientHeight-15 : window.pageYOffset+window.innerHeight-18
dropmenuobj.contentmeasure=dropmenuobj.offsetHeight

[verN]

problem solved added ob_start(); after the start of the php tag and ob_end_flush(); before the end of the php tag