RE: directory manipulation [newbie]

Hiya Im new to php and am trying to display filenames within directorys and be able to drill down into lower directories within an html page. I have this file displaydir.php

       $dir_to_be_read = "C:/Program Files/ApacheGroup/Apache2/cgi-bin/";
       $current_dir = "$dir_to_be_read";

       $dir = opendir($current_dir);

       echo "Upload directory is $current_dir<br>";
       echo "Directory Listing:<br><hr><br>";

       while  ($file = readdir($dir))
           {

echo "<a href=\"openfile.php?file=".$file."\">".$file."</a><br>";

               }
       closedir($dir);

I also have this file openfile.php

       $current_dir = "$dir_to_be_read";
       $file = basename($file);
       //if (is_dir($file))

       echo "<h1>Details of file: ".$file."</h1>";

The actual question is where to put the is_dir test...it makes sense to be in the openfile.php? also how can I do this logic: if file print details of file //already got in openfile.php if directory -call again displaydir.php but this time with the new $dir_to_read? so it shows the file in the new drill down directory. Cheers Bobby _________________________________________________________________ Stay in touch with MSN Messenger http://messenger.msn.co.uk