function updateForm(form){
        for(var i = 0; i < document.newsletter.whofor.length; i++) {
            val = document.newsletter.whofor[i]
            if(val.checked) {
                if (val.value == 'men') {
                    document.newsletter.merchantid.value = '99221';
                    document.newsletter.ARThankyouURL.value =
'http://www.davidwygant.com/thanks-men.html';
                    document.newsletter.defaultar.value = '319767';
                }
                if (val.value == 'women') {
                    document.newsletter.merchantid.value = '130804';
                    document.newsletter.ARThankyouURL.value =
'http://www.davidwygant.com/thanks-women.html';
                    document.newsletter.defaultar.value = '332928';
                }

            }
        }
}