// ajax script for getting state data

   $(document).on('change','#country', function(){

      var countryID = $(this).val();

      if(countryID){

          $.ajax({

              type:'POST',

              url:'backend-script.php',

              data:{'idarticletype':countryID},

              success:function(result){

                  $('#state').html(result);

                 

              }

          }); 

      }else{

          $('#state').html('<option value="">Country</option>');

          $('#city').html('<option value=""> State </option>'); 

      }

  });



    // ajax script for getting  city data

   $(document).on('change','#state', function(){

      var stateID = $(this).val();

      if(stateID){

          $.ajax({

              type:'POST',

              url:'backend-script.php',

              data:{'state_id':stateID},

              success:function(result){

                  $('#city').html(result);

                 

              }

          }); 

      }else{

          $('#city').html('<option value="">City</option>');

          

      }

  });