ÿþ// Sets cookie value. Expiration date is optional

function setCookie(name, value, expiredays) {

	var ExpireDate = new Date ();

	ExpireDate.setTime(ExpireDate.getTime() + (expiredays * 24 * 3600 * 1000));

	document.cookie = name + "=" + escape(value) + ((ExpireDate == null) ? "" : (";expires=" + ExpireDate.toGMTString()));

	//alert("setCookie:"+name+"="+value);

}

// Gets cookie value

function getCookie(name) {

	var search = name + "=" ;

	if (document.cookie.length > 0) {

	// if there are any cookies

		offset = document.cookie.indexOf(search);

		if (offset != -1) {

		// if cookie exists

			offset += search.length;

		// set index of beginning of value

			end = document.cookie.indexOf(";", offset);

		// set index of end of cookie value

			if (end == -1)end = document.cookie.length;

			//alert("getCookie:"+name+"="+(unescape(document.cookie.substring(offset, end))));

			return unescape(document.cookie.substring(offset, end));

		}

	}

}

// Delete a cookie by setting a past expiration date

function deleteCookie(name) {

	var ExpireDate = new Date ();

	ExpireDate.setTime(ExpireDate.getTime() - (24 * 3600 * 1000));

	document.cookie = name + "=" + "expired" + ";expires=" + ExpireDate.toGMTString();

	//alert("deleteCookie:"+name);

}





function writeCookie(name, value) {

	document.cookie = name + "=" + value;

}

function readCookie(name) {

	var search = name + "=" ;

	if (document.cookie.length > 0) {

		offset = document.cookie.indexOf(search);

		if (offset != -1) {

			offset += search.length;

			end = document.cookie.indexOf(";", offset);

			if (end == -1)end = document.cookie.length;

			return document.cookie.substring(offset, end);

		}

	}

}