problem with using include files

Hello The problem I have when using include files is the path to different parts of the web site. To Explain: I have a header.inc file in an inc directory: root |___inc | |___header.inc | |___images | |___topbar_01.gif | |___faq |___faq.php In the header.inc file there is: <img name="topbar_01" src="images/topbar_01.gif" width=783 height=56> now when I include this into the faq.php file I do not display the topbar_01.gif as the path to topbar_01.gif is now /root/faq/images/topbar_01.gif I would like to be able to use a header.inc file so that I can update the entire site simply. Is there a way I can specify the correct path when using an include file in this way? I have tried to use some of the Environment Variables. I find that I am having this problem when I am using a structured site. I would rather not place all files into the same directory Thankyou for your reply, Ivan