The setting in ajaxWDwx.js for var maxupdates = 20; was set at a default of 20 updates, then stop until the page was refreshed .. this was done to limit the traffic to your website for folks who like leave the page open in the browser.
If you want to have it run all the time, just set it to var maxupdates = 0; and the timeout feature will be disabled.
Best regards,
Ken