hi sorry i'm a real newbie to php so would like to check this out:

my index.php page looks like this:

Code:
<body>
<div class="header">
<?php include ("header.html") ?>
</div>
<div id="menu">
<?php include ("menu_start.html") ?>
</div>
<div id="mainbody">
<?php include ("homebody.html") ?>
</div>
<div class="footer">
<?php include ("footer.html") ?>
</div>
so what i want to do is have a link called 'about' on my header.html page but when i click this i want to show 'about.html' in the same place as 'homebody.html' - how do i do this? ie. load a specific page in a specific part of the page??

thanks