var Cookie = {
	getValue: function(name){
		var nameEQ = name + "=";
		var ca = document.cookie.split(';');
		for(var i=0, c; i<ca.length; i++) {
			for (c = ca[i]; c.charAt(0)==' ';)
				c = c.substring(1, c.length);
			if (c.indexOf(nameEQ) == 0)
				return c.substring(nameEQ.length, c.length);
		}
		return null;
	},
	
	setValue: function(name, value, days){
		var expires = "";
		if(days){
			var date = new Date();
			date.setTime(date.getTime() + days * 86400000);
			expires = "; expires=" + date.toGMTString();
		}
		document.cookie = name + "=" + value + expires + "; path=/";
	},
	
	delValue: function(name) {
		Cookie.setValue(name, "", -1);
	}
};