The usage of diacritics in web pages requires Unicode encoding.
In the head section of the page (between <head> and </head>) you need to insert this line:
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
Here is a list with the corresponding HTML codes of the romanian diacritics :
ă > ă
Ă > Ă
î > î
Î > Î
ş > ş
Ş > Ş
ţ > ţ
Ţ > Ţ
â > â
 > Â
Diacritics are good