Search by category/sub category

[pixelhaus]

Is it possible to change the search to a drop down menu, populated by categories, then a second drop down menu that is auto-populated with sub categories such as you would find on:
http://www.contracthireandleasing.com/

[leehack]

Rob from stinkyink posted how to do this a few months ago and provided it as a download with instructions off his site i believe.

[Duncan Rounding]

See here:
http://themes.stinkyink.com/actinic-dropdowns/

[pixelhaus]

Just the thing. Thanks for that.