In a Wordpress site, is there a way to allow site-wide caching, but force certain areas of a page to reload on each visit? For example, if on a specific page there is a huge navigational menu that never changes, a map that rarely changes, and hours of operation which change frequently (as often as holidays), is there a way to force only the hours of operation to reload when a person revisits the page? -Wilhelmina Randtke