This setting causes the browser page to refresh and reload all CSS and JavaScript files after a predefined number of screens are rendered. Refreshing the browser page releases the memory held by JavaScript and can help with applications experiencing memory leaks. If not set, the browser page is never refreshed.
Note: We've found Internet Explorer versions earlier than 8.0 do not release the memory held by JavaScript when the page is refreshed.
Examples:
pui["refresh interval"] = 50; // refresh the page after 50 screens are rendered
pui["refresh interval"] = 1; // refresh with every screen rendered
Where do you save this configuration option? Here.