function run_mail_to_link(str_dom, str_user, str_subject) {
   var str_subj = '';
   if (str_subject && str_subject.length > 0) {
      str_subj = str_subject;
   }
   return("mail"+"to:"+str_user+"@"+str_dom.replace(/%23/g,".")+'?subject='+str_subj);
}