<!-- Original:  Tom Khoury (twaks@yahoo.com) -->
<!-- This script and many more are available free online at -->
<!-- The JavaScript Source!! http://javascript.internet.com -->
<!-- Begin
function placeFocus() {
    //If there are multiple forms on a page, pass the numeric argument of the form for the selection; otherwise defaults to the first form. 
    var formPosition = arguments.length == 0 ? 0 : arguments[0];

    try {
    if (document.forms.length > 0) {
        var field = document.forms[formPosition];
        for (i = 0; i < field.length; i++) {
            var fieldType = field.elements[i].type;
            if (fieldType && ( fieldType == "text" || fieldType == "textarea") && 
                    (fieldType != "hidden" && !field.elements[i].disabled)) {
                document.forms[formPosition].elements[i].focus();
                break;
            }
        }
    } 
    } catch (err) { }
}
function isEnter(evt) {
    evt = (evt) ? evt : event;
    var charCode = (evt.charCode) ? evt.charCode :
        ((evt.which) ? evt.which : evt.keyCode);
    if (charCode == 13 || charCode == 3) {
        return true;
    } else {
        return false;
    }
}

function submitOnEnter(form, event, mask) {
    if (isEnter(event) && form.onsubmit()) form.submit();
}
//  End -->