var Eop = Eop || {};
Eop.Util = {};

/**
 * 将一个json对象转为字串
 */
Eop.Util.jsonToString = function(obj) {
	var THIS = this;
	switch (typeof (obj)) {
	case 'string':
		return '"' + obj.replace(/(["\\])/g, '\\$1') + '"';
	case 'array':
		return '[' + obj.map(THIS.jsonToString).join(',') + ']';
	case 'object':
		if (obj instanceof Array) {
			var strArr = [];
			var len = obj.length;
			for ( var i = 0; i < len; i++) {
				strArr.push(THIS.jsonToString(obj[i]));
			}
			return '[' + strArr.join(',') + ']';
		} else if (obj == null) {
			return 'null';

		} else {
			var string = [];
			for ( var property in obj)
				string.push(THIS.jsonToString(property) + ':'
						+ THIS.jsonToString(obj[property]));
			return '{' + string.join(',') + '}';
		}
	case 'number':
		return obj;
	case false:
		return obj;
	}
};

jQuery.cookie = function(name, value, options) {
    if (typeof value != 'undefined') { // name and value given, set cookie
        options = options || {};
        if (value === null) {
            value = '';
            options.expires = -1;
        }
        var expires = '';
        if (options.expires && (typeof options.expires == 'number' || options.expires.toUTCString)) {
            var date;
            if (typeof options.expires == 'number') {
                date = new Date();
                date.setTime(date.getTime() + (options.expires * 24 * 60 * 60 * 1000));
            } else {
                date = options.expires;
            }
            expires = '; expires=' + date.toUTCString(); // use expires attribute, max-age is not supported by IE
        }
        // CAUTION: Needed to parenthesize options.path and options.domain
        // in the following expressions, otherwise they evaluate to undefined
        // in the packed version for some reason...
        var path = options.path ? '; path=' + (options.path) : '';
        var domain = options.domain ? '; domain=' + (options.domain) : '';
        var secure = options.secure ? '; secure' : '';
        document.cookie = [name, '=', encodeURIComponent(value), expires, path, domain, secure].join('');
    } else { // only name given, get cookie
        var cookieValue = null;
        if (document.cookie && document.cookie != '') {
            var cookies = document.cookie.split(';');
            for (var i = 0; i < cookies.length; i++) {
                var cookie = jQuery.trim(cookies[i]);
                // Does this cookie string begin with the name we want?
                if (cookie.substring(0, name.length + 1) == (name + '=')) {
                    cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
                    break;
                }
            }
        }
        return cookieValue;
    }
};