How to save URL parameters (UTMs) browsing website

When user comes on a site with some UTMs (for example: http://ift.tt/2gRVzZ4) this UTMs removes from URL ending when he reach another pages on the website. I can use this UTM parameters by JavaScript only at the first page he have came, but I want to save this UTMs while user serfs the site pages to use them by JavaScript all the time user serfs the website.