--- a/flys-client/src/main/java/de/intevation/flys/client/client/ui/DatacagePairWidget.java	Fri Nov 16 18:35:08 2012 +0100
+++ b/flys-client/src/main/java/de/intevation/flys/client/client/ui/DatacagePairWidget.java	Sun Nov 18 01:19:07 2012 +0100
@@ -2,21 +2,18 @@
 
 import com.google.gwt.core.client.GWT;
 
+import com.smartgwt.client.util.SC;
 import com.smartgwt.client.widgets.Button;
-
-import com.smartgwt.client.widgets.layout.VLayout;
-import com.smartgwt.client.widgets.layout.HLayout;
-
+import com.smartgwt.client.widgets.events.ClickEvent;
 import com.smartgwt.client.widgets.events.ClickHandler;
-import com.smartgwt.client.widgets.events.ClickEvent;
-
 import com.smartgwt.client.widgets.grid.ListGrid;
-
-import de.intevation.flys.client.shared.model.Artifact;
-import de.intevation.flys.client.shared.model.User;
-import de.intevation.flys.client.shared.model.ToLoad;
+import com.smartgwt.client.widgets.layout.HLayout;
+import com.smartgwt.client.widgets.layout.VLayout;
 
 import de.intevation.flys.client.client.FLYSConstants;
+import de.intevation.flys.client.shared.model.Artifact;
+import de.intevation.flys.client.shared.model.ToLoad;
+import de.intevation.flys.client.shared.model.User;
 
 
 /**
@@ -95,8 +92,10 @@
         ToLoad toLoad1 = firstDatacageWidget.getSelection();
         ToLoad toLoad2 = secondDatacageWidget.getSelection();
 
-        // TODO further sanitize (toRecommendations.length)
-        if (toLoad1 == null || toLoad2 == null) {
+        if (toLoad1 == null || toLoad2 == null ||
+            toLoad1.toRecommendations().isEmpty() ||
+            toLoad2.toRecommendations().isEmpty()) {
+            SC.say(MSG.warning_select_two_values());
             return;
         }