I know it sounds confusing but I will try my best to explain what I really mean.

Here is part of my css code:

And my navigation bar at http://ibnuasad.org

The navigation code is located at index.html. I want to move the code to a separate file called navigation.php and I would place <?php include("navigation.php") ?> in my index.html file.

Here's the problem:
I want to make something like when I go to index.html I want the "Welcome" text to use the activenavitab style. But when I go to downloads.html I want the "Downloads" text to use the style activenavitab and make the "Welcome" text use the "navitab" style.

Note that I will also be using the code <?php include("navigation.php") ?> in the downloads.html file

Anyone knows how to this?

Btw, I was not sure where to post this thread cause it involves CSS, HTML and PHP

EDIT:
Someone had give me the code
[PHP]<?php
$l[0][0] = "index.html";
$l[0][1] = "Welcome";

$l[1][0] = "bio.html";
$l[1][1] = "Bio";

$l[2][0] = "contact-page.html";
$l[2][1] = "Contact Me";


$l[3][0] = "gallery.html";
$l[3][1] = "Gallery";


$thispage = $_SERVER['SCRIPT_NAME'];

$arr = explode("/", $thispage);
$page = strtolower($arr[2]);
?>
<?php
$i = 0;
while ($l[$i] != "") {
if (strtolower(str_replace(" ", "", $l[$i][0])) == $page) {
echo "<a class=\"activenavitab\" href=\"" . $l[$i][0] . "\">" . $l[$i][1] . "</a>"; }
else {
echo "<a class=\"navitab\" href=\"" . $l[$i][0] . "\">" . $l[$i][1] . "</a>"; }
$i++;
}

?> [/PHP]

But it still wont show the activenavitab style...I have placed the code into navigation.php and implement it on http://ibnuasad.org/bio.html

Can someone please help me I'm still a php newbie