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My understanding of the CDATA comments is that whatever is between them will be skipped by crawlers? so If i have a little program that i want on each page, but don't want the text within the div's to be crawled, does it make sense to document.write it out onto the page inbetween CDATA comments? thanks

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No. CDATA sections are ignored by parsers, not by (I'm assuming you mean "search engine...") crawlers.Also, they aren't really skipped... it's just that they're taken as a whole unparsable thingy. By the end of parsing, a CDATA is visible as an equivalent text node, but without entities, i.e.

<![CDATA[ 2 < 3 ]]>

is equivalent to writing

 2 < 3 

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