hiding page content from spiders

does anyone know if there is a way to hide a selected area of html content on a page from spiders (mostly to make content below a search form appear higher on the page).
I have found a reference to the following tags:
<!--noindex_start--> text/html to hide <!--noindex_end-->; and
<!--htdig_noindex--> text/html to hide <!--/htdig_noindex-->.
Does anyone know if the above would work with googlebot and slurp or is there another way (other than rebuilding the search thing)?
Thanks in advance.
richardo

[dannysullivan]

Yahoo is considering adding a tag like that, but they haven't introduced it. So none of the major searchengines allow you to parse out parts of your page through tagging, unfortunately.

[thaedge]

richardo - use an Iframe.

[phaithful]

or add content via Javascript or remove content via "ip-delivery"