$(document).ready(function() {
  $('.ob-email').each(function(){
    var self = $(this);
    var m = self.html().replace(/[a-zA-Z]/g, function(c){return String.fromCharCode((c<="Z"?90:122)>=(c=c.charCodeAt(0)+13)?c:c-26);})
    self.html(m).attr('href', 'mailto:'+m);
  })
})