function validate() {
    if (document.forms['contact_form'].b_first_name.value.length < 1) {
        alert('Please enter your First Name.');
        document.forms['contact_form'].b_first_name.focus();
        return false;
    }
    if (document.forms['contact_form'].b_last_name.value.length < 1) {
        alert('Please enter your Last Name.');
        document.forms['contact_form'].b_last_name.focus();
        return false;
    }
    if (document.forms['contact_form'].b_company_name.value.length < 1) {
        alert('Please enter your Company Name.');
        document.forms['contact_form'].b_company_name.focus();
        return false;
    }
    if (document.forms['contact_form'].b_address1.value.length < 1) {
        alert('Please enter your Address.');
        document.forms['contact_form'].b_address1.focus();
        return false;
    }
    if (document.forms['contact_form'].b_city.value.length < 1) {
        alert('Please enter your City.');
        document.forms['contact_form'].b_city.focus();
        return false;
    }
    if (document.forms['contact_form'].b_state.value.length < 1 && document.forms['contact_form'].b_country.value == 'USA') {
        alert('For U.S. addresses, please select a State.');
        document.forms['contact_form'].b_state.focus();
        return false;
    }
    if (document.forms['contact_form'].b_zipcode.value.length < 1) {
        alert('Please enter your Zip Code.');
        document.forms['contact_form'].b_zipcode.focus();
        return false;
    }
    if (document.forms['contact_form'].b_phone1.value.length < 1) {
        alert('Please enter your Phone Number.');
        document.forms['contact_form'].b_phone1.focus();
        return false;
    }
    if (document.forms['contact_form'].b_email.value.length < 1) {
        alert('Please enter your E-mail.');
        document.forms['contact_form'].b_email.focus();
        return false;
    }
}