--- functions_html.inc.php.save	2006-01-22 22:02:59.000000000 +0100
+++ functions_html.inc.php	2006-01-22 22:02:35.000000000 +0100
@@ -29,13 +29,12 @@
 {
   global $user, $conf, $lang;
 
-  if (!preg_match('/\d{4}-\d{2}-\d{2}/', $date))
+  if (!preg_match('/(\d{4})-(\d{2})-(\d{2}) (\d{2}):(\d{2}):(\d{2})/', $date, $r)) 
   {
     return '';
   }
-
-  list( $year,$month,$day ) = explode( '-', $date );
-  $unixtime = mktime( 0, 0, 0, $month, $day, $year );
+  
+  $unixtime = mktime( 0, 0, 0, $r[2], $r[3], $r[1] );
   
   $diff = time() - $unixtime;
   $day_in_seconds = 24*60*60;

Index: include/functions_html.inc.php
===================================================================
--- include/functions_html.inc.php	(revision 1012)
+++ include/functions_html.inc.php	(working copy)
@@ -29,13 +29,14 @@
 {
   global $user, $conf, $lang;
 
-  if (!preg_match('/\d{4}-\d{2}-\d{2}/', $date))
+  list($year, $month, $day) = preg_split('/[\s-]/', $date, 4);
+  $unixtime = mktime( 0, 0, 0, $month, $day, $year );
+
+  if ($unixtime === false  // PHP 5.1.0 and above
+      or $unixtime === -1) // PHP prior to 5.1.0
   {
     return '';
   }
-
-  list( $year,$month,$day ) = explode( '-', $date );
-  $unixtime = mktime( 0, 0, 0, $month, $day, $year );
   
   $diff = time() - $unixtime;
   $day_in_seconds = 24*60*60;

Index: include/functions_html.inc.php
===================================================================
--- include/functions_html.inc.php	(revision 1012)
+++ include/functions_html.inc.php	(working copy)
@@ -27,15 +27,23 @@
 
 function get_icon( $date )
 {
+  // TODO $page['icon_cache'], for each date, associate the HTML icon
   global $user, $conf, $lang;
 
-  if (!preg_match('/\d{4}-\d{2}-\d{2}/', $date))
+  if (!preg_match('/^(\d{4})-(\d{2})-(\d{2})/', $date, $matches))
   {
+    // date can be empty, no icon to display
     return '';
   }
+  
+  list($devnull, $year, $month, $day) = $matches;
+  $unixtime = mktime( 0, 0, 0, $month, $day, $year );
 
-  list( $year,$month,$day ) = explode( '-', $date );
-  $unixtime = mktime( 0, 0, 0, $month, $day, $year );
+  if ($unixtime === false  // PHP 5.1.0 and above
+      or $unixtime === -1) // PHP prior to 5.1.0
+  {
+    return '';
+  }
   
   $diff = time() - $unixtime;
   $day_in_seconds = 24*60*60;