XML in 10 points in Slovakian

I have some questions for W3C about translation.

Can I make these changes in translated document?
	- change 'lang' and 'xml:lang' attributes from English to Slovak
	- add 'hreflang' attribute to links that references to documents
in different language
	- add meta element with info about translator

Thanks

Jozef Izso
<izsak@adart.sk>
ICQ#: 126028809