diff --git a/gnome-menu/viertversuch/manage-kategs.sh b/gnome-menu/viertversuch/manage-kategs.sh
index ddab4da..d2efecb 100755
--- a/gnome-menu/viertversuch/manage-kategs.sh
+++ b/gnome-menu/viertversuch/manage-kategs.sh
@@ -3,7 +3,8 @@
 set -u
 
 KATEG_FILES="`dirname $0`/kategorien-norm.lst `dirname $0`/kategorien-debian.lst"
-READ_DESKTOP_DIR="/var/lib/menu-xdg/applications/menu-xdg"
+#READ_DESKTOP_DIR="/var/lib/menu-xdg/applications/menu-xdg"
+READ_DESKTOP_DIR="/usr/share/applications"
 WRITE_DESKTOP_DIR="`dirname $0`/desktop-files"
 #DATA_FILE="`dirname $0`/database.dat"
 DATA_FILE="/tmp/database.dat"
@@ -24,7 +25,7 @@ hole_app_liste()
 # Parameter: app-name
 lade_app_kategs()
 {
-	DDATEI="$READ_DESKTOP_DIR/$1.desktop"
+	DDATEI=`find $READ_DESKTOP_DIR -type f -name $1.desktop`
 	if [ -e "$DATA_FILE" ] && grep -q "^$1=" "$DATA_FILE"
 		then	grep "^$1=" "$DATA_FILE" | cut -d "=" -f 2
 		else	[ -e "$DDATEI" ] && grep "^Categories=" "$DDATEI" | cut -d "=" -f 2 | tr "\n" " " | tr ";" " "
@@ -69,9 +70,29 @@ hole_verwandte_kategs_der_app()
 }
 
 
+hole_anzahl_apps()
+{
+	echo "$ALLE_APPS" | wc -l
+}
+
+
+# entfernt alle Apps, die nicht in der angegebenen Kategorie sind
+# Parameter: 	- die Kategorie 
+#		- die Anwendungen
+filter_apps_nach_kateg()
+{
+	local KATEG="$1"
+	shift
+	echo -e "$ALLE_APPS" | while read num name
+		do	lade_app_kategs "$name" | grep -q "$KATEG" && echo -e "$num\t$name"
+	  done
+}
+
+
+
 speichere_formdaten()
 {
-	local POST_DATA=`cat - | tr "&" "\n" | tee /tmp/out`
+	local POST_DATA=`cat - | tr "&" "\n"`
 	local EINTRAEGE=`echo "$POST_DATA" | grep "^text_kategs_" | cut -d = -f 1 | sed 's/^text_kategs_//'`
 	local NEUE_KATEGS
 	local APP_NAME
@@ -167,7 +188,7 @@ html_apps_config()
 html_formular()
 {
 	echo -n '<FORM NAME="Kategorien-Zuordnung" METHOD="POST"'
-	echo " ACTION=\"`basename $0`?action=speichern&app_start_nr=$1\">"
+	echo " ACTION=\"`basename $0`?action=speichern&app_start_nr=$APP_START_NR\">"
 	echo "<TABLE BORDER=\"0\">"
 	echo "	<TR>"
 	echo "		<TH>Programm</TH>"
@@ -177,12 +198,10 @@ html_formular()
 	echo "		<TH>weitere Kategorie</TH>"
 	echo "	</TR>"
 	
-	local START=$1
-	local i=$START
-	local ENDE=$((START+EINTRAEGE_PRO_SEITE-1))
-	while [ $i -le $ENDE ]
-		do	html_apps_config $i
-			i=$((i+1))
+	local uebrig=$EINTRAEGE_PRO_SEITE
+	echo -e "$ALLE_APPS" | sed 1,$((APP_START_NR-1))d | while [ $uebrig -gt 0 ] && read num name
+		do	html_apps_config $num
+			uebrig=$((uebrig-1))
 	  done
 
 	echo "</TABLE>"
@@ -191,10 +210,18 @@ html_formular()
 }
 
 ############# cgi-Zeug #############
+
+# liest einen cgi-Parameter ein und liefert notfalls einen angegebenen Default-Wert zurueck
+# Parameter: der Name des Parameters und der default-Wert
 hole_parameter()
 {
-	set | grep -q "^QUERY_STRING" || return
-	echo "$QUERY_STRING" | tr "&" "\n" | grep "^$1" | cut -d "=" -f 2
+	local ERG=$2
+	if set | grep -q "^QUERY_STRING"
+		then	ERG=`echo "$QUERY_STRING" | tr "&" "\n" | grep "^$1" | cut -d "=" -f 2`
+		else	ERG="$2"
+	  fi
+	[ -z "$ERG" ] && ERG="$2"
+	echo -e "$ERG"
 }
 
 ############# los geht es! ############
@@ -204,16 +231,19 @@ html_header
 ALLE_KATEGS=`hole_kateg_liste`
 ALLE_APPS=`hole_app_liste`
 
-ACTION=`hole_parameter action`
-[ -z "$ACTION" ] && ACTION=formular
+KATEG_FILTER=`hole_parameter kateg_filter ""`
+[ -n "$KATEG_FILTER" ] && ALLE_APPS=`filter_apps_nach_kateg "$KATEG_FILTER"`
+
+
+ACTION=`hole_parameter action formular`
 
 case "$ACTION" in
 	speichern|formular)
 		[ "$ACTION" = "speichern" ] && speichere_formdaten
-		APP_START_NR=`hole_parameter app_start_nr`
-		[ -z "$APP_START_NR" ] && APP_START_NR=1
 
-		html_formular $APP_START_NR
+		APP_START_NR=`hole_parameter app_start_nr 1`
+
+		html_formular
 		html_footer
 		;;
 	*)