Get and Post Method

Hi Aaron,


GET and  POST

GET is simpler and faster than POST, and can be used in most cases.

However, always use POST requests when:

    * A cached file is not an option (update a file or database on the server)
    * Sending a large amount of data to the server (POST has no size limitations)
    * Sending user input (which can contain unknown characters), POST is more robust and secure than GET


GET Requests

xmlhttp.open("GET","demo_get.asp",true);
xmlhttp.send();

If you want to send information with the GET method, add the information to the URL:
Example
xmlhttp.open("GET","demo_get2.asp?fname=Henry&lname=Ford",true);
xmlhttp.send();

POST Requests

Example
xmlhttp.open("POST","demo_post.asp",true);
xmlhttp.send();

To POST data like an HTML form, add an HTTP header with setRequestHeader(). Specify the data you want to send in the send() method:
Example
xmlhttp.open("POST","ajax_test.asp",true);
xmlhttp.setRequestHeader("Content-type","application/x-www-form-urlencoded");
xmlhttp.send("fname=Henry&lname=Ford");



Please refer the below links

http://www.openjs.com/articles/ajax_xmlhttp_using_post.php

http://www.w3schools.com/ajax/ajax_xmlhttprequest_send.asp



Thanks