function scrollToFormError(){
    document.getElementById("bst-formerror").scrollIntoView(true);
}

function recaptchaToAudio(){
    document.getElementById("bst-1").style.display="none";
    document.getElementById("bst-2").style.display="block";
    Recaptcha.switch_type('audio');
}

function recaptchaToText(){
    document.getElementById("bst-1").style.display="block";
    document.getElementById("bst-2").style.display="none";
    Recaptcha.switch_type('image');
}