[jQuery] Refresh DIV with full page refresh

Hi All , How to refresh DIV , without refresh entire page, Am having four DIV , DIV1,DIV2,DIV3,DIV4 I want to refresh only DIV! without affecting the DIV3,DIV4 , Thanks

[jQuery] Refresh div

Hoping to get a little help since I know very little jquery and ajax. I am developing a site in drupal where I have an ad on just about every page and it currently refreshes on every page load with a different ad. I need the ad to reload every 5 seconds. I am sure this is possible with jquery. I h