To start with create a simple form where the user can type some text. Whatever the client types in this form has to be appended to a text file, this text file will then be displayed to the client. The actual writing to the text file is done with an Active Server Script. By including the meta tag for refreshing the page will be refreshed every 5 seconds. This concept is called client pull. This is because it is the clients responsiblity to read the meta tag and call for a refresh every five seconds.