prevent enter key

gistfile1.js

<script type="text/javascript">
    //Stop Form Submission of Enter Key Press
    function stopRKey(evt) {
        var evt = (evt) ? evt : ((event) ? event : null);
        var node = (evt.target) ? evt.target : ((evt.srcElement) ? evt.srcElement : null);
        // if the keyCode was Enter, and node that caused event was not a textarea, submit or button, cancel the event
        if (evt.keyCode == 13 && node.type != "textarea" && node.type != 'submit' && node.type != 'button') { return false; }
    }
    document.onkeypress = stopRKey;
</script>