Thanks buddy!
The prob solved...

Hi everyone!
I'm new in php. I have a project to be completed soon. I have to do a web survey. I used session to pass the respondent Id from one page to another. My problem is, when I add a html code for the background color, I got a warning-"cannot send session cookie-headers already sent by (output started at ...). When I didn't add the html script, the session cookie can be sent, but I didn't get a coloured background. how to insert...