Using anchors and potential for duplicate content

Anchors as internal links and potential for duplicate content issues

[keto]

Is there a general conscience around using anchors to link to content within a single page? I would assume the simple solution is to make sure to block any URL with a # in it via the robots.txt?

Thus if the anchor looks like:

<a name="chapter4"></a> 

and the following will resolve:

<a href="http://www.domain.com#chapter4">Chapter 4</a> 

The line in the robots.txt should look like this?

Disallow: /*#*

[pageoneresults]

The Fragment Identifier is a client side function. The bot will stop at the # symbol.

Fragment Identifiers - Axioms of Web Architecture
[webmasterworld.com...]

[keto]

Thanks PageOneResults... that answers my question 100%