Different code in "headinclude" template

[wynode]

Just wondering if there is a conditional that can be used to have different code in the headinclude template depending on whether a user is browsing the main page (ie www.thesite.com) or any one of the other pages (ie www.thesite.com/forum/showthread....).

I've found some PHP conditionals but unfortunately this is not supported in a template.

 <?php 
$uri = $_SERVER['REQUEST_URI']; 
if ($uri == "/") { 
      echo "You're on the homepage"; 
} else { 
     echo "You're on an internal page"; 
} 
?>

[Lynne]

if (THIS_SCRIPT == 'index') 
{ 
do something
} else {
do something else
}