237039 Javascript Send Batch to Cart

Our website/CMS allows subscribers to send links of MP3s to an external custom "shopping cart" script, that in turn lets the subscriber zip his selected files together for one download. Right now each file has to selected individually. We would like the ability to "batch select" all of the files appearing on a page and send them to the cart with one click. Each item sends seven parameters to the script from the CMS. Each page may have up to 100 files listed. Needed: 1) Javascript checkbox to "activate" selected link; 2) Function to send all selected links to external cart script with one click; 3) Utility to select all/deselect all file links of designated class on page.