function swapImage(id, src)
{
    var el = $(id);
    
    if (el)
    {
        var img = el.firstDescendant();
        if (img)
            img.setAttribute('src', src);
    }
}

function swapText(id, src)
{
    var el = $(id);
    
    if (el)
    {
        el.innerHTML = src;
    }
}

function send_comment()
{
    form = $('frm_testimonial');
    $('testimonial_form').setStyle({display: 'none'});
    $('testimonial_sent').setStyle({display: 'none'});
    $('testimonial_sending').setStyle({display: ''});
    $('testimonial_error').setStyle({display: 'none'});
    
    form.request({
        onComplete: send_comment_handler
        });
}

function send_comment_handler(resp)
{
    if (resp.responseText.indexOf('ok') > -1)
    {
        $('testimonial_form').setStyle({display: 'none'});
        $('testimonial_sent').setStyle({display: ''});
        $('testimonial_sending').setStyle({display: 'none'});
        $('testimonial_error').setStyle({display: 'none'});
    }
    else
    {
        $('testimonial_form').setStyle({display: 'none'});
        $('testimonial_sent').setStyle({display: 'none'});
        $('testimonial_sending').setStyle({display: 'none'});
        $('testimonial_error').setStyle({display: ''});
    }
}

function retry_form()
{
    $('testimonial_form').setStyle({display: ''});
    $('testimonial_sent').setStyle({display: 'none'});
    $('testimonial_sending').setStyle({display: 'none'});
    $('testimonial_error').setStyle({display: 'none'});
}

function adjust_tab()
{
    $("email_field").setAttribute('tabindex', -1);
}