diff --git a/content/student/studentdetailoverlay.xul.php b/content/student/studentdetailoverlay.xul.php
index dd86b3657..2ea56203b 100644
--- a/content/student/studentdetailoverlay.xul.php
+++ b/content/student/studentdetailoverlay.xul.php
@@ -104,13 +104,26 @@ echo '<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>';
 							<label value="Geburtsnation" control="student-detail-menulist-geburtsnation"/>
 							<menulist id="student-detail-menulist-geburtsnation" disabled="true"
 									datasources="<?php echo APP_ROOT ?>rdf/nation.rdf.php?optional=true" flex="1"
+									 xmlns:NATION="http://www.technikum-wien.at/nation/rdf#"
 									ref="http://www.technikum-wien.at/nation/liste" >
 								<template>
-									<menupopup>
-										<menuitem value="rdf:http://www.technikum-wien.at/nation/rdf#nation_code"
-												label="rdf:http://www.technikum-wien.at/nation/rdf#kurztext"
-												uri="rdf:*"/>
+									<rule NATION:sperre='false'>
+										<menupopup>
+											<menuitem value="rdf:http://www.technikum-wien.at/nation/rdf#nation_code"
+													label="rdf:http://www.technikum-wien.at/nation/rdf#kurztext"
+													uri="rdf:*"
+													/>
 										</menupopup>
+									</rule>
+									<rule>
+										<menupopup>
+											<menuitem value="rdf:http://www.technikum-wien.at/nation/rdf#nation_code"
+													label="rdf:http://www.technikum-wien.at/nation/rdf#kurztext"
+													uri="rdf:*" style="text-decoration:line-through;"
+													/>
+										</menupopup>
+									</rule>
+
 								</template>
 							</menulist>
 
@@ -127,15 +140,29 @@ echo '<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>';
 							<label value="Staatsbuergerschaft" control="student-detail-menulist-staatsbuergerschaft"/>
 							<menulist id="student-detail-menulist-staatsbuergerschaft" disabled="true"
 									datasources="<?php echo APP_ROOT ?>rdf/nation.rdf.php?optional=true" flex="1"
+									xmlns:NATION="http://www.technikum-wien.at/nation/rdf#"
 									ref="http://www.technikum-wien.at/nation/liste" >
 								<template>
-									<menupopup>
-										<menuitem value="rdf:http://www.technikum-wien.at/nation/rdf#nation_code"
-												label="rdf:http://www.technikum-wien.at/nation/rdf#kurztext"
-												uri="rdf:*"/>
+									<rule NATION:sperre='false'>
+										<menupopup>
+											<menuitem value="rdf:http://www.technikum-wien.at/nation/rdf#nation_code"
+													label="rdf:http://www.technikum-wien.at/nation/rdf#kurztext"
+													uri="rdf:*"
+													 />
 										</menupopup>
+									</rule>
+									<rule>
+										<menupopup>
+											<menuitem value="rdf:http://www.technikum-wien.at/nation/rdf#nation_code"
+													label="rdf:http://www.technikum-wien.at/nation/rdf#kurztext"
+													uri="rdf:*" style="text-decoration:line-through;"
+													 />
+										</menupopup>
+									</rule>
 								</template>
 							</menulist>
+
+
 							<label value="Matrikelnummer" control="student-detail-textbox-matr_nr"/>
 							<hbox><textbox id="student-detail-textbox-matr_nr" disabled="true" maxlength="32" size="15"/></hbox>
 							<label value="Sprache" control="student-detail-menulist-sprache" />
@@ -326,13 +353,25 @@ echo '<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>';
 								<menulist id="student-prestudent-menulist-zgvnation" disabled="true"
 										datasources="<?php echo APP_ROOT ?>rdf/nation.rdf.php?optional=true" flex="1"
 										ref="http://www.technikum-wien.at/nation/liste"
+										xmlns:NATION="http://www.technikum-wien.at/nation/rdf#"
 										style="min-width: 100px">
 									<template>
-										<menupopup>
-											<menuitem value="rdf:http://www.technikum-wien.at/nation/rdf#nation_code"
-													label="rdf:http://www.technikum-wien.at/nation/rdf#kurztext"
-													uri="rdf:*"/>
-										</menupopup>
+										<rule NATION:sperre='false'>
+											<menupopup>
+												<menuitem value="rdf:http://www.technikum-wien.at/nation/rdf#nation_code"
+														label="rdf:http://www.technikum-wien.at/nation/rdf#kurztext"
+														uri="rdf:*"
+														/>
+											</menupopup>
+										</rule>
+										<rule>
+											<menupopup>
+												<menuitem value="rdf:http://www.technikum-wien.at/nation/rdf#nation_code"
+														label="rdf:http://www.technikum-wien.at/nation/rdf#kurztext"
+														uri="rdf:*" style="text-decoration:line-through;"
+														/>
+											</menupopup>
+										</rule>
 									</template>
 								</menulist>
 							</hbox>
@@ -347,7 +386,8 @@ echo '<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>';
 									<menupopup>
 										<menuitem value="rdf:http://www.technikum-wien.at/zgvmaster/rdf#code"
 												label="rdf:http://www.technikum-wien.at/zgvmaster/rdf#kurzbz"
-												uri="rdf:*"/>
+												uri="rdf:*"
+												/>
 										</menupopup>
 								</template>
 							</menulist>
@@ -362,13 +402,25 @@ echo '<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>';
 								<menulist id="student-prestudent-menulist-zgvmasternation" disabled="true"
 										datasources="<?php echo APP_ROOT ?>rdf/nation.rdf.php?optional=true" flex="1"
 										ref="http://www.technikum-wien.at/nation/liste"
+										xmlns:NATION="http://www.technikum-wien.at/nation/rdf#"
 										style="min-width: 100px">
 									<template>
-										<menupopup>
-											<menuitem value="rdf:http://www.technikum-wien.at/nation/rdf#nation_code"
-													label="rdf:http://www.technikum-wien.at/nation/rdf#kurztext"
-													uri="rdf:*"/>
-										</menupopup>
+										<rule NATION:sperre='false'>
+											<menupopup>
+												<menuitem value="rdf:http://www.technikum-wien.at/nation/rdf#nation_code"
+														label="rdf:http://www.technikum-wien.at/nation/rdf#kurztext"
+														uri="rdf:*"
+														/>
+											</menupopup>
+										</rule>
+										<rule>
+											<menupopup>
+												<menuitem value="rdf:http://www.technikum-wien.at/nation/rdf#nation_code"
+														label="rdf:http://www.technikum-wien.at/nation/rdf#kurztext"
+														uri="rdf:*" style="text-decoration:line-through;"
+														/>
+											</menupopup>
+										</rule>
 									</template>
 								</menulist>
 							</hbox>