How to use AJAX to populate state list depending on Country list?

Question

I have the code below that will change a state dropdown list when you change the country list.
How can I make it change the state list ONLY when country ID number 234 an

Answer 1

**index.html**











    

        

            
 Country:
            
    
                    Select
                    United States
                    India
                    United Kingdom
                
            
        
        

        States:
     
   
                    Select State

                
        

    

 


**ajaxServer.jsp**
Select State
<% 
String count=request.getParameter("country");
String india[]={"Mumbai", "New Delhi", "Bangalore"};
String usa[]={"New Yourk", "Los Angeles","California"};
String uk[]={"London", "Manchester", "Liverpool"};
String states[];
if(count.equals("india"))
{
    for(int i=0;i<=2;i++)
    {
    out.print(""+india[i]+"");
    }
}
else if(count.equals("usa"))
{
    for(int i=0;i"+usa[i]+"");
    }
}
else if(count.equals("uk"))
{
    for(int i=0;i<=2;i++)
    {
    out.print(""+uk[i]+"");
    }
}

%>