Sorry if I was vague with question, was wanting

1st drop down list to be able to pick client, and their details (1) will fill
(2,3,4,5)
2nd drop down list to be able to pick Company details (A) will fill (B,C,D,E)

Would like to to be set out with both lists beside each other on the page, list1 left indent and list 2 right indent

[drop down list 1] [Drop down list 2]
1 - MR Client A- Company detail
2- His street B- Their Street
3- His suburb C- Their Suburb
4- His town D- Their town
5- His Country E- Their Country