i want to make multilevel drop down let me explain
i have 6 drop down
1. Select Area
option are
a. Asia
b. Europe
2. Select country
Option Are for Aisa
a. India
b. china ..... so On
Option Are for Europe
a. France
b. Uk...... so on
3 .Select State
Option for India
a. delh
b. maharastra
c gujrat
option of UK
option 1
option 2
option 3 so on ....
4. Select District
option 1
option 2
option 3 so on.....
5. select zone
option 1
i want to connect all drop down relatively how can i do