function createCookie(name, value, days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime() + (days * 24 * 60 * 60 *1000));
		var expires = '; expires='+date.toGMTString();
	} else expires = '';
	document.cookie = name + '=' + value+expires + '; path=/';
};

function readCookie(name) {
	var nameEQ = name + '=',
	ca = document.cookie.split(';');
	
	for(var i=0; i < ca.length; i++) {
		var c = ca[i];
		while (c.charAt(0) == ' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	
	return null;
}