if (document.URL.indexOf("wrong=1") > 0) {
    if (document.getElementById('captcha1')) {
        document.getElementById('captcha1').style.height = '75px';
        document.getElementById('captcha1').style.visibility = 'visible';
    }
    if (document.getElementById('captcha2')) {
        document.getElementById('captcha2').style.height = '12px';
        document.getElementById('captcha2').style.visibility = 'visible';
    }
}
if (document.URL.indexOf("wrong=2") > 0) {
    if (document.getElementById('captcha3')) {
        document.getElementById('captcha3').style.height = '75px';
        document.getElementById('captcha3').style.visibility = 'visible';
    }
    if (document.getElementById('captcha4')) {
        document.getElementById('captcha4').style.height = '16px';
        document.getElementById('captcha4').style.visibility = 'visible';
    }
}