How do I create a simple site search?

[eluser]design_shuffle[/eluser]
Hi,

I am building my first codeigniter app. The client wishes to have a search box in the header of the site. The idea being a user enters a query, hits enter, the whole db is queried and then the user is presented with a results page with clickable items.

I have looked through the CI forum, wiki and user guide but cannot find a suitable answer. Is this possible?, if so could someone please point me in the right direction.

If this isn't possible, could someone suggest an alternative approach?


Thanks
Dan