Disable 2 submit buttons in single form after clicking button

user/Purchases_ctrl/create_vendor_payment” onsubmit=’disableButton()’>SubmitNo Vendor Payments Today
function disableButton() {var submit = document.getElementById(‘submit’);var nopay = document.getElementById(‘nopay’);submit.disabled = true;submit.innerText = ‘SUBMITTING’;nopay.disabled = true;nopay.innerText = ‘No Vendor Payments Today’;}
> when having 2 submit buttons named submit & nopay, only one is working at a time. I need to disable each button after clicking and submitting the form.