function showBox (boxID) {
    infoBox = document.getElementById ('cardInfoMain'+boxID);
	mailBox = document.getElementById ('cardMailMain'+boxID);

	if (infoBox.style.visibility == 'hidden') {
       infoBox.style.visibility = 'visible';
	   mailBox.style.visibility = 'hidden';
    } else if (mailBox.style.visibility == 'hidden') {
		mailBox.style.visibility = 'visible';
		infoBox.style.visibility = 'hidden';
	}
}

function sendMail (elemID) {
	formBox = document.getElementById ('form' + elemID);
	formBox.submit();
}

function clearMail (elemID) {
	textBox = document.getElementById ('text' + elemID);
	textBox.value = "";
}