Its an ajaxTransport of Jquery library that allow form submitting
- As simple as calling jquery ajax function
 - Minimum configuration option
 - Cross domain communication using name transport
 
Sample code for ajaxTransport of Jquery library
    $.post('form_id',{ name: "John", location: "Boston" }, function(data){
        //Handle the response data
    },'form html');or
 $.ajax({
        form: 'form_id',
        url: "post.php",
        formData: { name: "John", location: "Boston" },
        dataType: 'form html',
        success:function(data){
            //Handle The response data
        }
    });