It's easier to sort javascript tables without changing the current table structure.

Xmlns = "http://www.w3.org/1999/xhtml">

Name	Age	Position	Income	Gender
John	37	Managing director	90.000	Male
Susan	34	Partner	90.000	Female
David	29	Head of production	70.000	Male
Laura	29	Head of marketing	70.000	Female
Kate	18	Marketing	50.000	Female
Mona	21	Marketing	53.000	Female
Mike	21	Marketing	53.000	Male
Mark	25	Production	52.000	Male
Peter	33	Production	55.000	Male
Jennifer	24	Production	49.000	Female
David	25	Photography	51.000	Male
Anna	42	Head of photography	56.000	Female
Rita	30	Photography	54.000	Female
Magnus	25	Freelancer	65.000	Male
Johnny	29	Freelancer	63.000	Male