// Calling the Function - Option 1
//   <script language="JavaScript">
//    <!-- Begin
//      document.write(emaddr('info','domain','com','General Information Inquiry','Click here to Email us'));
//    // End -->
//   </script>
// 
// Calling the Function - Option 2
//   <script language="JavaScript">document.write(emaddr('info','domain','com','General Information Inquiry','Click here to Email us'));</script>

function emaddr(Username,Domain,Extn,SubjectText,DisplayText){
  var MAI = "&#109;&#97;&#105;";
  var LTO = "&#108;&#116;&#111;&#58;";
  if (SubjectText == null || SubjectText == "" ) {
    SubjectText = "";
  }
  else {
    SubjectText = "?subject=" + SubjectText;
  }
  if (DisplayText == null || DisplayText == "" ){ DisplayText = Username +'&#64;' + Domain + '&#46;' + Extn;}
  return '<a href="' + MAI + LTO + Username + '&#64;' + Domain + '&#46;' + Extn + SubjectText + '">' + DisplayText + '</a>';
}