function mailus(mbox,stub,subject)
{
    mail = "mailto:"+mbox+"@"+stub;
    if(subject != ""){
        mail = mail+"?SUBJECT="+"A-M: "+subject;
    }
    window.location = mail;
    return;
}

/*
2. in the mail link we place this in the href
Questions to <a href="javascript:mailus('webmaster','zytrax.com','About Web site')" class="p-f-s">webmaster at zytrax</a>
 */