// JavaScript Documentfunction createCookie(name,value) {var days=7;var date = new Date();date.setTime(date.getTime()+(days*24*60*60*1000));var expires = "; expires="+date.toGMTString();document.cookie = name+"="+value+expires+"; path=/";	}function readCookie(name) {	var nameEQ = name + "=";	var 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;}function eraseCookie(name) {	createCookie(name,"",-1);}