Pages excerpts 2

Plugin Description:

Simply add page excerpts in your pages.
Same as original plugin 

http://get-simple.info/extend/plugin/pages-excerpts/62/

but added offset parameter
so usage is "name, offset, length, texttype", for templates:
    echo page_excerpt('index', 0, 60, 'html'); 
and for pages:
    (% excerpt : name, 0, 60, html %)  
where 0 is offset