diff --git a/include/head.inc.php b/include/head.inc.php
index 14d94f9..ac0b1dd 100644
--- a/include/head.inc.php
+++ b/include/head.inc.php
@@ -2,7 +2,7 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 
 <?php
-if ($titlepage == "") {
+if (!isset($titlepage) || $titlepage == "") {
     $titlepage = "Train Miniature Avallonnais";
 } else {
     $titlepage = "Train Miniature Avallonnais : $titlepage";
diff --git a/include/standard.inc.php b/include/standard.inc.php
index b7f1487..c7c9fa0 100644
--- a/include/standard.inc.php
+++ b/include/standard.inc.php
@@ -60,7 +60,7 @@ function parse_string($chaine)
     //$traite = ereg_replace("</url>","\">[Lien]</a>",$traite);
     // themes
     global $theme;
-    $traite = ereg_replace("THEME_COURANT", $theme, $traite);
+    $traite = str_replace("THEME_COURANT", $theme, $traite);
     return $traite;
 }
 
diff --git a/index.php b/index.php
index 0adfacf..4c3230c 100644
--- a/index.php
+++ b/index.php
@@ -1,7 +1,7 @@
 <?php
 
-$page = $_GET["page"];
-$modulepage = $_GET["modulepage"];
+if (isset($_GET["page"])) { $page = $_GET["page"]; }
+if (isset($_GET["modulepage"])) { $modulepage = $_GET["modulepage"]; }
 
 function getmicrotime()
 {
@@ -34,7 +34,7 @@ if (!isset($section) || $section == "") {
     $section = "pages";
 }
 
-if ($page == "index") {
+if (!isset($page) || $page == "index") {
     $page = "menu";
 }
 
diff --git a/modules/goldbook.php b/modules/goldbook.php
index ab8ee4d..956e8fc 100644
--- a/modules/goldbook.php
+++ b/modules/goldbook.php
@@ -18,14 +18,6 @@ if (isset($GoldbookFile) && $GoldbookFile != "") {
 $Cpt = 0;
 
 echo "<form method='post' action='";
-/*if (isset($goldbooktype) && ($goldbooktype == "comment"))
-{
-        echo "?modulepage=commentnews&File=$File&idnews=".$MyNews["index"]."&theme=$theme'>\n";
-        $modulepage = "commentnews";
-        $gbparam = "<input name='File' value='$File' type='hidden'>\n<input name='idnews' value='".$MyNews["index"]."' type='hidden'>";
-}
-else*/
-//echo "?modulepage=goldbook'>\n";
 echo "/livre.html'>\n";
 
 echo "<div class='center'><table border='0'><tr><td>
@@ -34,7 +26,6 @@ echo "<div class='center'><table border='0'><tr><td>
         <i>Nom/Pseudo (facultatif)</i>:<input name=\"VName\" type='text' size='20' value=\"\" /></td><td>
         <i>e-mail (facultatif)</i>:<input name=\"VEmail\" type='text' size='20' value=\"\" /></td></tr>
         <tr><td><div class='center'><i>Message</i>:<textarea name='VMessage' cols='50' rows='12'></textarea></div></td></tr>
-        <!--".$gbparam."-->
 	<input name='piejacon' value='piejacon' class='piejacon' />
         <tr><td class='right'><input name=\"Ecrire\" value='Ecrire' type='submit' /></td><td><input name=\"Effacer\" value=\"Effacer\" type=\"reset\" /></td></tr></table></div></form>
 	<h6><i>Notes</i>: Les balises HTML ne sont pas autorisés dans la boite de saisie. Les messages sont modérés, ils n'apparaitront donc pas immédiatement sur le livre d'or.</h6>\n";
@@ -47,15 +38,15 @@ if (!(file_exists("modules/goldbook/$GoldbookFile.csv"))) {
 }
 
 // ajout des messages
-if ($param == "postgb") {
+if (isset($param) && $param == "postgb") {
     if ($VMessage != "" && isset($_POST['piejacon'])) {
         $date = date_format(date_create(), "d/m/Y");
         $iheure = date("H:i");
-        $VMessage = ereg_replace("<", "&lt;", $VMessage);
-        $VMessage = ereg_replace(">", "&gt;", $VMessage);
+        $VMessage = str_replace("<", "&lt;", $VMessage);
+        $VMessage = str_replace(">", "&gt;", $VMessage);
         $VMessage = parse_string(stripcslashes($VMessage));
-        $VMessage = ereg_replace("\n", "<br />", $VMessage);
-        $VMessage = ereg_replace("&", "&amp;", $VMessage);
+        $VMessage = str_replace("\n", "<br />", $VMessage);
+        $VMessage = str_replace("&", "&amp;", $VMessage);
         $gbline = sprintf("\"".$date."\",\"".$iheure."\",\"".htmlspecialchars($VName)."\",\"".$VEmail."\",\"".$VMessage."\"\n");
         $goldbook = fopen("modules/goldbook/$GoldbookFile.csv", "a");
         fwrite($goldbook, $gbline);
diff --git a/modules/magicbox.php b/modules/magicbox.php
index ccf6eba..c80e8e1 100644
--- a/modules/magicbox.php
+++ b/modules/magicbox.php
@@ -38,13 +38,17 @@ if (isset($headclass)) {
 }
 echo "'>\n";
 
-echo "$headstartcode";
+if (isset($headstartcode)) {
+    echo "$headstartcode";
+}
 if (isset($headlien)) {
     echo "<a href='$headlien' title='$headtitle'>$titre</a>";
 } else {
     echo "$titre";
 }
-echo "$headendcode\n";
+if (isset($headendcode)) {
+    echo "$headendcode\n";
+}
 // ************** body *******************
 echo "</td>\n</tr>\n<tr>\n<td class='magicbox'>";
 echo "<div class='center'>\n<table border='0' width='90%' class='";
@@ -54,9 +58,13 @@ if (isset($bodyclass)) {
     echo "magicbox";
 }
 echo "'>\n<tr>\n<td>";
-echo "$bodystartcode";
+if (isset($bodystartcode)) {
+    echo "$bodystartcode";
+}
 include "modules/".$module.".php";
-echo "$bodyendcode";
+if (isset($bodyencode)) {
+    echo "$bodyencode";
+}
 echo "</td>\n</tr>\n</table>\n</div>\n</td>\n</tr>";
 
 if (isset($footerbox) && ($footerbox == 1)) {
