function CheckMultiple1(frm, name) {
    for (var i=0; i < frm.length; i++) {
        fldObj = frm.elements[i];
        fldId = fldObj.id;
        if (fldId) {
            var fieldnamecheck=fldObj.id.indexOf(name);
            if (fieldnamecheck != -1) {
                if (fldObj.checked) {
                    return true;
                }
            }
        }
    }
    return false;
}

function CheckForm1(f) {
    if (f.email.value == "") {
        alert("Please enter your email address.");
        f.email.focus();
        return false;
    }
    if (f.format.selectedIndex == -1) {
        alert("Please choose a format to receive your email campaigns in");
        f.format.focus();
        return false;
    }
    if (f.captcha.value == "") {
        alert("Please enter the security code shown");
        f.captcha.focus();
        return false;
    }
    return true;
}