}
/**
- * Checks wether the given action is valid
+ * Checks whether the given action is valid
*
* @param $actionName The default action we shall execute
- * @return $isValid Wether the given action is valid
+ * @return $isValid Whether the given action is valid
* @throws EmptyVariableException Thrown if given action is not set
*/
public function isActionValid ($actionName) {