Cookies в jQuery

В jQuery только если с плагином. Но проще так:

function setCookie(name, value, props) {

	props = props || {}

	var exp = props.expires

	if (typeof exp == "number" && exp) {

		var d = new Date()

		d.setTime(d.getTime() + exp*1000)

		exp = props.expires = d

	}

	if(exp && exp.toUTCString) { props.expires = exp.toUTCString() }



	value = encodeURIComponent(value)

	var updatedCookie = name + "=" + value

	for(var propName in props){

		updatedCookie += "; " + propName

		var propValue = props[propName]

		if(propValue !== true){ updatedCookie += "=" + propValue }

	}

	document.cookie = updatedCookie



}



var dateObj = new Date();

var tomorrowDate = dateObj.getDate() + 1;

dateObj.setDate(tomorrowDate);





setCookie('foo', 'bar', {expires: dateObj});

Взято с javascript.ru