i have a website in which i have to put some lines in Arabic…. how to do it…
where to get the Arabic text characters… how to make the page support Arabic…
i have to put a line per page and there is a lotta lotta pages so can’t go around making images and putting them…

The W3C has a good introduction.
In short:
HTML is a text markup language. Text means any characters, not just ones in ASCII.
You can also represent any unicode character with ASCII