Different forms of Hiragana?

[thumbninja]

I'm new to all of this and have come across a couple of different forms of hiragana characters for the same syllables. For example in the kana recognition section of this site sa seems to be represented as a mirror image of ti/chi(of the top of my head so could be wrong). Elsewhere I've seen it represented as a skewed x floating above a dash if you'll forgive my description. Are these both valid?

Thanks for any responses

[Harv]

Yes they're both valid, they're just different styles of writing.

http://japanese.about.com/blqow42.htm

[thumbninja]

Appreciated. Cheers.

[ANDS!]

The "mirrored 'chi'" is a more cursive style of writing SA, while the "skewed X" is the more. . ."relaxed" way of writing "SA".