Given below the code for ajax in jquery:

$(document).ready(function() {
  $('#form').submit(function(){
  var number = $('#number').val(); 
  $.ajax({type:"post",url:"calculate.jsp",data:"number=" 
  +number,success:function(msg){$('#result').hide(); 
  $("#result").html("<h3>" + msg + "</h3>").fadeIn("slow"); } });
  return false;
});
});