* Mail: fixed sometimes not working (un)subscribe of mailboxes, added better diagnostic and automatic (de)select children

etemplate/js/et2_widget_tree.js

@@ -818,6 +818,19 @@ var et2_tree = et2_inputWidget.extend(
 		}
 	},
 
+	/**
+	 * Set state of node incl. it's children
+	 *
+	 * @param {string} _id id of node
+	 * @param {boolean|string} _state or "toggle" to toggle state
+	 */
+	setSubChecked: function(_id, _state)
+	{
+		if (_state === "toggle") _state = !this.input.isItemChecked(_id);
+
+		this.input.setSubChecked(_id, _state);
+	},
+
 	/**
 	 * Get URL relative to image_path option
 	 *