diff --git a/javascript/SecurityAdmin_left.js b/javascript/SecurityAdmin_left.js
index 3bd35c96..e5801151 100755
--- a/javascript/SecurityAdmin_left.js
+++ b/javascript/SecurityAdmin_left.js
@@ -137,13 +137,17 @@ deletegroup = {
 Behaviour.addLoader(function () {
 	// Set up add page
 	Observable.applyTo($('addgroup_options'));
-	$('addgroup').onclick = addgroup.button_onclick;
-	$('addgroup').getElementsByTagName('button')[0].onclick = function() {return false;};
-	$('addgroup_options').onsubmit = addgroup.form_submit;
+	if($('addgroup')) {
+		$('addgroup').onclick = addgroup.button_onclick;
+		$('addgroup').getElementsByTagName('button')[0].onclick = function() {return false;};
+		$('addgroup_options').onsubmit = addgroup.form_submit;
+	}
 
 	// Set up delete page
 	Observable.applyTo($('deletegroup_options'));
-	$('deletegroup').onclick = deletegroup.button_onclick;
-	$('deletegroup').getElementsByTagName('button')[0].onclick = function() {return false;};
-	$('deletegroup_options').onsubmit = deletegroup.form_submit;
+	if($('deletegroup')) {
+		$('deletegroup').onclick = deletegroup.button_onclick;
+		$('deletegroup').getElementsByTagName('button')[0].onclick = function() {return false;};
+		$('deletegroup_options').onsubmit = deletegroup.form_submit;
+	}
 });
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