diff -u -r1.5 referers.php
--- referers.php	27 Apr 2003 01:37:21 -0000	1.5
+++ referers.php	11 Jul 2003 10:36:07 -0000
@@ -43,7 +43,8 @@
   if (longitud_compensada ($texto) > 25)
     $texto = recortar_compensado ($texto, 22) . "...";
 
-  $url = preg_replace ("/&/", "&", $url);
+  $url = htmlspecialchars ($url);
+  $texto = htmlspecialchars ($texto);
 
   return "<a href=\"$url\">$texto</a>";
 }