Common js

common.js

$(document).ready(function(){
  //Ajax form validation
  $("#ajax-form").submit(function() {
    var formData = $(this).serialize();
    $.ajax({
      type: "POST",
      url: "ajax-form.php",
      data: formData,
      dataType: 'json',
      cache: false,
      success: function(data) {
      //If the data key from PHP json array is "error"
      if (data.error) {
        $("#error").hide().stop(true, true).slideDown(400).html(data.error);
        $("#success").hide();
      } else {
        $("#error").hide();
        //Reset the form
        $("#ajax-form")[0].reset();
        $("#success").slideDown(400).html(data.success);
   
        //Fade out success message after 7 secs
        setTimeout(function(){
        $('#success').fadeOut(600);
        }, 7000);
      }
    },
  error: function() {
    alert("Server error. Please try again later.");
  }
 });
  return false;
  });
});