function switcher(txt) {
	var s = "";
	for (var i = 0; i < txt.length; i+=2)
		if (i + 1 == txt.length) s += txt.charAt(i)
		else s += txt.charAt(i+1) + txt.charAt(i);
	return s.replace(/\?/g,'.');
}

function email_prepare(name, domain, toshow) {
	document.write("<a href='mailto:" + switcher(name) + "@" + switcher(domain) + "'>");
	if (toshow != "") document.write(toshow);
	else document.write(switcher(name) + "@" + switcher(domain));
	document.write("</a>");
}