/**
 * @author Administrator
 */

/**
 * @classDescription Cookie Class
 */
var Cookies = {};

/**
 * Cookie 생성 함수
 * 
 * @memberOf Cookies
 * @param {String} name Cookie 이름
 * @param {String} value Cookie 값
 * @param {Date} expires Cookie 기간 (option)
 * @param {String} path 경로 (option)
 * @param {String} domain 도메인 (option)
 * @param {boolean} secure (option)
 */
Cookies.set = function(name, value){
	var argv = arguments;
	var argc = arguments.length;
	var expires = (argc > 2) ? argv[2] : null;
	var path = (argc > 3) ? argv[3] : '/';
	var domain = (argc > 4) ? argv[4] : null;
	var secure = (argc > 5) ? argv[5] : false;
	document.cookie = name + "=" + escape (value) +
		((expires == null) ? "" : ("; expires=" + expires.toGMTString())) +
		((path == null) ? "" : ("; path=" + path)) +
		((domain == null) ? "" : ("; domain=" + domain)) +
		((secure == true) ? "; secure" : "");
};

/**
 * Cookie 값을 얻는 함수
 * 
 * @param {String} name
 * @return {Object} Returns a Cookie value
 */
Cookies.get = function(name){
	var arg = name + "=";
	var alen = arg.length;
	var clen = document.cookie.length;
	var i = 0;
	var j = 0;
	while(i < clen){
		j = i + alen;
		if (document.cookie.substring(i, j) == arg)
			return Cookies.getCookieVal(j);
		i = document.cookie.indexOf(" ", i) + 1;
		if(i == 0)
			break;
	}
	return null;
};


/**
 * Cookie 값을 얻기 위한 내부 함수
 * 
 * @param {int} offset
 */
Cookies.getCookieVal = function(offset){
	var endstr = document.cookie.indexOf(";", offset);
	if(endstr == -1){
		endstr = document.cookie.length;
	}
	return unescape(document.cookie.substring(offset, endstr));
};

/**
 * Cookie 삭제 함수
 * 
 * @param {String} name
 */
Cookies.clear = function(name) {
	if(Cookies.get(name)){
		document.cookie = name + "=" +
		"; expires=Thu, 01-Jan-70 00:00:01 GMT";
	}
};