improve filter to allow sorting by multiple tax

[Jack Lamb]

The filter could be more like a filter using ajax and allow multiple filters rather than jumping to another page

[Jack Lamb]

also add options in the shortcode to choose which filters to display (add service type also)

[Jack Lamb]

Here's some good examples: http://wordpress.org/extend/plugins/facetious/screenshots/

[Tim Hyde]

please call it "filter by" and not "sort by". I had a very fussy end-user this week, but they are correct - this isn't a sort it is a filter.