Populate the combobox

hi...

i have two combobox

i want to populate the value in second combobox when am selecting first combo value....i can select more than one value in first combo then respective value from table shd populate in second combobox....

i made one java class...ex.

rs =db.executeQuery( CUSTOMER_MASTER);

while(rs.next())

{

client.add(rs.getString("CUSTOMER_NAME"));

System.out.println("client"+rs.getString("CUSTOMER_NAME"));

}

session.setAttribute("client",client);

System.out.println("Read Customer Name");

String CUSTOMER_MASTER="SELECT CUSTOMER_NAME FROM CUSTOMER" ;

String FACILITY_MASTER="SELECT FACILITY_NAME FROM FACILITY WHERE CUSTOMER_ID=?";

using getAttribute am getting on my jsp....

hw to populate that am not getting..

[827 byte] By [getshilua] at [2007-11-27 0:12:52]