Enabling a hard key (ENTER) to emulate a button click using JavaScript

We have an HTML app that collects transaction data (picks, putaways, replenship, etc.) in a distribution center. We'd like to use an Intermec CK71 with WinMobile 6.5 and a browser as the data collection device. At present our users scan / key into data entry fields and then click the NEXT button to enter data on the server.

Is there a way to use JavaScript to enable a hard key (ENTER) to emulate the cursor tap on the NEXT button? We can get the CK71's scan code for the ENTER key by using Intermec's on board key board remapping utility.

Any help would be greatly appreciated.

Thanks