object.style.textTransform = "value";
<'text-transform'> = none | [ capitalize | uppercase | lowercase ] || full-width || full-size-kana
capitalize
Puts the first typographic letter unit of each word, if lowercase, in titlecase; other characters are unaffected.
uppercase
Puts all letters in uppercase.
lowercase
Puts all letters in lowercase.
full-width
Puts all typographic character units in fullwidth form.
full-size-kana
Converts all small Kana characters to the equivalent full-size Kana.