limiter aux articles commençant par "20"

index.php

@@ -160,7 +160,7 @@
 <?php
 $odd_even = 0;
 $liste    = '';
-foreach (glob("articles/*/header.html") as $filename) {
+foreach (glob("articles/20*/header.html") as $filename) {
   $article = basename(dirname($filename));
   $odd_even = 1 - $odd_even;
   $header = file_get_contents($filename);