// Contact form button
submit_off = new Image(); submit_off.src = 'images/contact/submit_off.gif';
submit_on  = new Image(); submit_on.src  = 'images/contact/submit_on.gif';

function imgOn_submit(what) {
  what.src = submit_on.src;
}

function imgOff_submit(what) {
  what.src = submit_off.src;
}