Compatibility with previous versions

I had to change the code 

return regulars.append(function(i, h) {
  return bolds[i] || "";
});

by

return $.each(regulars, function(index, value) {
  $(value).append(bolds[index] || "");
});

to make it compatible with jquery 1.3.2
If there is no other problem, we can change it in master branch.
