var formInvalid = false;
function highlightInvalidField(id) {
    if ($(id)) {
        if ($(id).value == '') {
            $(id).style.backgroundColor = "#FF8400";
            formInvalid = true;
        } else {
            $(id).style.backgroundColor = "#ffffff";
        }
    }
}

function checkContactForm() {
    formInvalid = false;
    highlightInvalidField('ContactName');
    highlightInvalidField('Title');
    highlightInvalidField('email');
    highlightInvalidField('PhoneNumber');

    if (formInvalid == true) {
        return false;
    } else {
        return true;
    }
}

function changeTestimonialImage(id, number) {
    $('testimonialLargeImage').src = '/Content/Images/test' + id + number + 'large.jpg';
}