function trablet(stpre, stpost) {
  var x= 'johnbradwine@gmail.com';
  var z= 'mailto:johnbradwine@gmail.com';
  document.write(stpre + '<a href="' + z.substring(0,7) + x.substring(4,x.length) + '">' +  x.substring(4,x.length) + '</a>' + stpost);
}