A little navigation bar that I made

<?php
$locArray = array(
    "" => "Home Page",
    "img" => "Image Gallery",
    "dl" => "Downloads",
    "naruto" => "Naruto Shippuden",
    "bbs" => "Community",
    "contact" => "Contact",
    "about" => "About Us"
);

function location(){ //put this in global file
    global $siteURL, $locArray, $title; //I have title as a global, you can passed it as an argument
    $temp = explode("/", $_SERVER['REQUEST_URI']);
    $i = 0;
    $theURL = $siteURL;
    $retval = "<a href=\"".$theURL."\" title=\"".$locArray[$temp[$i]]."\" target=\"_self\"> ".$locArray[$temp[$i]]."</a>";
    for($i = 1; $i < sizeof($temp)-1; ++$i){
        $theURL .= "/" . $temp[$i];
        $retval .= " -> <a href=\"".$theURL."\" title=\"".$locArray[$temp[$i]]."\" target=\"_self\"> ".$locArray[$temp[$i]]."</a>";
    }
    $retval .= " -> $title"; //title = the title of the current page
    return $retval;
}
?>