Cross platform solution for https://www.yellowmachine.com/support/orderform.asp

HTML:
Change 'name' to 'id' here: 
<form method="post" name="OnlineOrderForm" action="order.asp" onSubmit="return checkrequirefields();">

JS:
Change all instances of 'document.OnlineOrderForm' to 'document.getElementById("OnlineOrderForm")'