I have replaced the submit button on a form with an image and it has resulted in unexpected and annoying behaviour. IE4 and Netscape 4 cause the computer's internal speaker to beep when the user hits the enter key. NS6 won't even submit on enter, even if you tab to the image (you have to click it to submit). I have used javascript to capture the key events and submit, but the beep remains (when the submit works). Getting the users to disable their computer's beeps manually is not an option. If I put a submit button on the page everything works fine, but if I try to hide the button from view (since I'm using images now and don't want the clunky buttons) using style="{display:none}" it doesn't submit on enter. This is driving me crazy!