Compares two strings and returns 0, 1, or -1. Compare strings containing a mix of letters and numbers in the way a human being would in sort order. This is described as a "language-sensitive". Can be used Standard sorting: International sorting: a a b ä z b ä z For example var a = ["ö", "1", "ä", "2", "20", "u", "ú", "z", "e", "10", "i", "3", "ü", "o", "a", "é"]; a.sort(); a.sort(w2utils.i18nCompare); returns ["1", "10", "2", "20", "3", "a", "e", "i", "o", "u", "z", "ä", "é", "ö", "ú", "ü"] ["1", "10", "2", "20", "3", "a", "ä", "e", "é", "i", "o", "ö", "u", "ú", "ü", "z"]