function stdec(s) {
    var f=s.charAt(0);
    var a=s.split(f);
    return a.join('');
}

function pmad(s3,s4) {
	s1 = 'bdbbunbcbabn';
	s2 = 'blibbbedebrtbabfel.borg';
    document.write('<A HREF="mai' + 'lto:' + stdec(s1) + '@' + stdec(s2) + '?subject=' + s4 + '">'); 
    document.write(s3 + '</A>');
}