jQuery function when form is typed in code example

Example 1: jquery on form submit call function

$(document).ready(function() {
  $("your form selector here").submit(function() {


    // do the extra stuff here
    $.ajax({
     type: "POST",
      url: "mail.php",
      data: $(this).serialize(),
      success: function() {
        $('.simple-sucess').fadeIn(100).show();
        $('.contact_form').fadeOut(100).hide();
        $('.simple_error').fadeOut(100).hide();

       }
    })

  })
})

Example 2: ajax post form listener button

$("button").click(function(e) {
    e.preventDefault();
    $.ajax({
        type: "POST",
        url: "/pages/test/",
        data: { 
            id: $(this).val(), // < note use of 'this' here
            access_token: $("#access_token").val() 
        },
        success: function(result) {
            alert('ok');
        },
        error: function(result) {
            alert('error');
        }
    });
});