Need assistance with while loop to rotate bg colors

[AshleyQuick]

Below is the snippet of code. I'd like to rotate <td align=center class=reverseeven> and <td align=center class=reverseodd>. I've reached an impasse..

<table class="reverse" rules="rows" style="width: 90%">
    <tr> 
        <td class="reversetitle">File Description</td>
        <td align="center" class="reversetitle">Downloads</td>
        <td align="center" class="reversetitle">Last Download</td>
    </tr>
    <?php 
    include_once ("download_cfg.php");
    $handle = @opendir("$dircount"); 
    if ($handle==FALSE){
    echo "Error:no counter directory [$dircount] found";
    return;
    }   
    $files = array();
    $cnt = 0 ;
    
    while(false!==($file=readdir($handle))){
    if ($file!='.' && $file!='..' && $file!=".htaccess"){
    $files[$cnt] = $file;
    $cnt = $cnt + 1;
    }
    }
    closedir ($handle);
    sort($files);
    for ($cnt=0;$cnt<count($files);$cnt++) {
    $filenm   = $dircount.$files[$cnt];
    $fd       = fopen ($filenm , "rb");
    $fcounter   = explode("::",fgets($fd, 1024));
    
    fclose($fd);
    // display file name and the counter.
    echo "<tr><td class=reverseeven>$fcounter[1]</td>";
    $files[$cnt]=substr($files[$cnt],0,strlen($files[$cnt])-4);
    echo "<td align=center class=reverseeven>$fcounter[0]</td>";
    $filemodtime = date("F j, Y ", filemtime($filenm ));
    echo "<td align=center class=reverseeven>$filemodtime</td></tr>";   
} ?>
</table>

[bcarl314]

In general, modulo will work for this, the concept is as follows:

$i = 0;
while(something) {
    $i++;
    if($i % 2 == 0) {
         $class="even";
    }
    else {
        $class="odd";
    }
}