Thread:Help talk:Timeline format/Filter events

Is there a way to filter events simultaneously while the user is typing or selecting criterias in textboxes and/or drop-down menus. For example, say that we want to display only the events that occur in a particular city or that we want to display only certain types of events, not all of them. Is it possibly to change the search criteria (the city or the type of event) without reloading the page?