diff --git a/suche.php b/suche.php
index 965cfeb..f3fb3cb 100755
--- a/suche.php
+++ b/suche.php
@@ -22,6 +22,22 @@
 
 require('config.inc.php');
 
+if (!isset($_REQUEST["search_what"])) $_REQUEST["search_what"]="";
+if (!isset($search_word)) $search_word="";
+if (!isset($search_word_org)) $search_word_org="";
+if (!isset($_REQUEST["search_org"])) $_REQUEST["search_org"]="";
+if (!isset($_REQUEST["search_ric"])) $_REQUEST["search_ric"]="";
+if (!isset($_REQUEST["search_max_results"])) $_REQUEST["search_max_results"]="";
+if (!isset($_REQUEST["search_time"])) $_REQUEST["search_time"]="";
+if (!isset($_REQUEST["search_time_from"])) $_REQUEST["search_time_from"]="";
+if (!isset($_REQUEST["search_time_to"])) $_REQUEST["search_time_to"]="";
+if (!isset($_REQUEST["Submit"])) $_REQUEST["Submit"]="";
+if (!isset($_REQUEST["select_tag_from"])) $_REQUEST["select_tag_from"]="";
+if (!isset($_REQUEST["select_monat_from"])) $_REQUEST["select_monat_from"]="";
+if (!isset($_REQUEST["select_tag_to"])) $_REQUEST["select_tag_to"]="";
+if (!isset($_REQUEST["select_monat_to"])) $_REQUEST["select_monat_to"]="";
+if (!isset($show)) $show="";
+
 /**************************/
 // Seite zusammenstellen
 //
@@ -131,7 +147,7 @@ require('config.inc.php');
 		
 	}
 	else{
-		$show_filter = 'WHERE d.id = "'.$_REQUEST[search_ric].'"';
+		$show_filter = 'WHERE d.id = "'.$_REQUEST["search_ric"].'"';
 	}
 	
 	if( $_REQUEST["search_org"] != '0' )