diff --git a/admin/inc/class.admin_categories.inc.php b/admin/inc/class.admin_categories.inc.php
index 451c97ad28..255f632ed5 100644
--- a/admin/inc/class.admin_categories.inc.php
+++ b/admin/inc/class.admin_categories.inc.php
@@ -601,9 +601,9 @@ class admin_categories
 			'delete' => array(
 				'caption' => 'Delete',
 				'allowOnMultiple' => true,
-				'nm_action' => 'open_popup',
 				'group' => ++$group,
 				'disableClass' => 'rowNoDelete',
+				'onExecute' => 'javaScript:app.admin.delete_category'
 			),
 		);
 
diff --git a/admin/js/app.js b/admin/js/app.js
index 20f8bd392f..b6cd96589d 100644
--- a/admin/js/app.js
+++ b/admin/js/app.js
@@ -772,20 +772,41 @@ app.classes.admin = AppJS.extend(
 	/**
 	 * Delete confirmation dialog
 	 * 
+	 * @param {egw action} _action
 	 */
-	delete_category: function ()
+	delete_category: function (_action)
 	{
 		var _buttons = [
 				{"button_id": "delete[cancel]","text": 'Cancel', id: 'delete[cancel]', image: 'cancel', "default":true},
 				{"button_id": "delete[delete]","text": 'Delete', id: 'delete[delete]', image: 'delete'},
 				{"button_id": "delete[subs]","text": 'Delete including sub-enteries', id: 'delete[subs]', image: 'delete'},
 		];
+		var action = _action;
 		var self = this;
 		var delDialog_callBack = function (_buttons)
 		{
 			if (_buttons != "delete[cancel]")
 			{
-				self.et2.getInstanceManager().submit(_buttons);
+				if (self.et2._inst.name == "admin.categories.index")
+				{
+					var nm_widget = self.et2.getWidgetById('nm');
+					if (nm_widget)
+					{
+						if (_buttons == "delete[delete]")
+						{
+							nm_action(action);
+						}
+						else
+						{
+							action.id = 'delete_sub';
+							nm_action(action);
+						}
+					}	
+				}
+				else
+				{
+					self.et2.getInstanceManager().submit(_buttons);
+				}
 			}
 		};
 		et2_dialog.show_dialog(delDialog_callBack,"Are you sure you want to delete this category ?","Delete",{},_buttons);
diff --git a/admin/templates/default/categories.index.xet b/admin/templates/default/categories.index.xet
index 7125b7dd89..61527b04d6 100644
--- a/admin/templates/default/categories.index.xet
+++ b/admin/templates/default/categories.index.xet
@@ -78,17 +78,6 @@
 				</row>
 			</rows>
 		</grid>
-		<box class="action_popup prompt" id="delete_popup">
-			<vbox class="prompt">
-				<description value="Delete" class="promptheader"/>
-				<description value="Delete selected entries?" id="delete_prompt"/>
-				<hbox>
-					<button label="Yes - Delete" id="delete" onclick="nm_submit_popup(this); return false;"/>
-					<button label="Yes - Delete including sub-entries" id="delete_sub" onclick="nm_popup_action.id = 'delete_sub'; nm_submit_popup(this); return false;"/>
-					<buttononly label="No - Cancel" onclick="nm_hide_popup(this,'delete_popup');"/>
-				</hbox>
-			</vbox>
-		</box>
 		<box class="action_popup prompt" id="owner_popup">
 			<vbox>
 				<description value="Change owner" class="promptheader"/>