[racket] mzScheme and Collection Path

hi,
i want to write a html code in DrRacket with <!--
mzscheme="..(schemecode).." --> to beable to read a data 'dynamicly'!
i have read that the html data should be saved in the collection Folder
named "doc"!
but some thing is going wrong! I don't have Doc folder in Collects and when
i try to copy the doc folder, which is outside the Collects folder in
Racket folder i get the access denied errornr5!
any idea how to create in scheme with html an on the fly document, so that
i can interactivly change data and get results!
thanks
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