Cookies is a method of storing information locally in browser and sending it to server whenever the pages are requested by the user. When a user requests a page, an HTTP request is sent to the server. The request includes a header that defines several pieces of information, including the page being requested. The server returns a HTTP response that also includes a header. The header contains information about the document being returned. These headers all contains one or more fields of information in a basic format like fieldname : information. |
Example |
<html>
<head> </head> <body bgcolor=”yellow” text=red> Type any desired word in the text box it will be kept as cookie for this document. <form mehtod=”post()”> <br> Cookie value : <input type = text size=10 onchange=”ck(this.value);”> <br> <input type=”submit”> </form>
<script type=”text/javascript”> function ck(ff) { document.cookie=ff } var cooky =((document.cookie != “”) && (document.cookie != null)) var cname=((cooky)? document.cookie: “Hello”) document.write(“<br>Cookies : “+document.cookie); </script> </body> </html> |