Setting the Cookie value through JavaScript

These two functions will demonstrate how to set the value in cookie and get the value through java script

This function sets the value

function setCookie(){

var name= ‘Mycookie’;
var value =’true’;
var path = ‘/’;

var today= new Date();
today.setTime( today.getTime() );

//expires in one day
var expires_date = 1 * 1000 * 60 * 60 * 24;

var expires = new Date( today.getTime() + (expires_date) );

document.cookie = name + “=” +escape( value ) +
document.cookie = name + “=” +escape( value ) +
( ( expires ) ? “;expires=” + expires.toGMTString() : “” ) +
( ( path ) ? “;path=” + path : “” ) ;

}

escape is used for decoding the value

This function retrieves the value form cookie

function getCookie(){

var cookie_values = document.cookie.split( ‘;’ );
var a_temp_cookie = ”;
var cookie_name = ”;
var cookie_value = ”;

for ( i = 0; i < cookie_values.length; i++ )
{

a_temp_cookie = cookie_values[i].split( ‘=’ );

//trim all white spaces

cookie_name = a_temp_cookie[0].replace(/^\s+|\s+$/g, ”);

if ( cookie_name == ‘Mycookie’ )
{
// This handles the  case where cookie has no value but exists (no = sign, that is):
if ( a_temp_cookie.length > 1 )
{
cookie_value = unescape( a_temp_cookie[1].replace(/^\s+|\s+$/g, ”) );
}
// note that in cases where cookie is initialized but no value, null is returned
alert(cookie_value);
break;
}

}