function signature() {

    var sb_domain1 = "yandex.ru"
    var sb_user1 = "greenservice"
    var sb_recipient1 = sb_user1 + "@" + sb_domain1
    var sb_url1 = "mailto:" + sb_recipient1
    var sb_domain2 = "gmx.net"
    var sb_user2 = "ermakov"
    var sb_recipient2 = sb_user2 + "@" + sb_domain2
    var sb_url2 = "mailto:" + sb_recipient2
    var sb_text1 = "Design & Mastering by <a href='"
    var sb_text2 = "'>D</a>&<a href='"+sb_url2+"'>W</a>"
    document.write(sb_text1+sb_url1+sb_text2)

}