Gucco

Hello everyone, im make a website for my final school project. My header is a image slider made in jQuery with a time interval to change to images. At the moment when you press a link, the URL changes (example: index.php?page=contact). Then I use the $_GET to know what html file needs to be included, for this example: contact.html. The problem is when the URL changes (after clicking a link), the page refreshes and my jQuery header also refreshes to image[0]. Is there a way to include the right content when clicking on a link, without refreshing the page/header? Thanks in advance Gucco.