--- C:\Documents and Settings\Aldo\Local Settings\Temp\TCVe529.tmp\common.1.537.inc	Mon Oct 09 10:50:23 2006
+++ D:\drupal cvs\drupal\includes\common.inc	Mon Oct 09 09:52:59 2006
@@ -695,6 +695,24 @@
 }
 
 /**
+ * Convert relative URLs in a block of HTML to absolute URLs
+ *
+ */
+ function filter_absolute_urls($data, $base_url) {
+  $base_url_root = (preg_match('%(.*://.*?)/%',$base_url, $matches)>0)?$matches[1]:$base_url;
+
+  $src = '%( href| src)="(?!\w+://)([^/][^"]*)"%';
+  $dst = '$1="'. $base_url .'/$2"';
+  $data = preg_replace($src, $dst, $data);
+
+  $src = '%( href| src)="(?!\w+://)/?([^"]*)"%';
+  $dst = '$1="'. trim($base_url_root, '/') .'/$2"';
+  return preg_replace($src, $dst, $data);
+
+  return $data;
+ }
+
+/**
  * @defgroup format Formatting
  * @{
  * Functions to format numbers, strings, dates, etc.
@@ -735,7 +753,7 @@
   $output = "<item>\n";
   $output .= ' <title>'. check_plain($title) ."</title>\n";
   $output .= ' <link>'. check_url($link) ."</link>\n";
-  $output .= ' <description>'. check_plain($description) ."</description>\n";
+  $output .= ' <description>'. check_plain(filter_absolute_urls($description, $link)) ."</description>\n";
   foreach ($args as $key => $value) {
     if (is_array($value)) {
       if ($value['key']) {