function rot13(str) {
    var chars = 'abcdefghijklmnopqrstuvwxyz';

    return String(str).replace(/[a-z]/gi, function(ch) {
        var base = (ch < 'a') ? 65 : 97;
        var idx = ((ch.charCodeAt() - base) + 13) % 26;
        if (ch < 'a') {
            return chars.charAt(idx).toUpperCase();
        } else {
            return chars.charAt(idx);
        }
    });
}	

function sendMail(to,displayName,subject){
	var to = rot13(to);
	var to = to.replace("?", "@");
	var to = to.replace("&", ".");
	var subject = escape(subject);
	document.write("<a href=\"mailto:" + to + "?subject=" + subject + "\">" + displayName + "</a>");	
	}