My question is very similar to this one.
I really thought that <input type="text" name="StackOverflow1370021" value="Fix IE bug" style="{display:none}" /> would fix this.
For clarity, I want the Enter button to do what the “Change” button does.
http://jsfiddle.net/RASgx/
Change your tag to:
<form name="text" onSubmit="document.getElementById('change').innerHTML=parseInt(document.getElementById('change').innerHTML)+parseInt((text.elements.field.value)); return false;">
That will prevent the form from being submitted.