avoiding files that start with "."

[Vertine]

hi guys...i am trying to avoid the annoying ._DS_store files that my script
creates. Essentially, i am making dynamic xml files to parse later in my
Flash....but i get the Mac files that start with a "."....how can i avoid
these? You can see in my attempt, i gave a shot, but it did not do the job.

<?php

$menuType=$_GET['menuType'];
$tour=$_GET['tour'];
$directoryThumbs="images/$menuType/$tour/"."$tour-Thumbnails";
$directoryImages="images/$menuType/$tour/"."$tour-Images";
$openThumbsDir=opendir($directoryThumbs);
echo ("&xml=<images>");

while(false!=($thumb=readdir($openThumbsDir))){
if($thumb !="." && $thumb !="._" && $thumb !=".." && $thumb !=".DS_Store"
&& $thumb !="._.DS_Store"){
$thumbs.="<pict>$thumb</pict>";

}
}
echo $thumbs;
closedir($openThumbsDir);

echo("</images>&");


?>