/************************************************************
 * Confirm Modal Plugin V1.0
 * https://github.com/klutche/confirm_modal
 * Released under the MIT license
 ************************************************************/

$(function(){
	var modal = $(".modal");//モーダルウインドウのクラス
	var opacity = 0.9;//モーダル背景の透明度
	var button = $(".close_modal");//モーダル解除ボタンのクラス
	var limitDays = 30;//Cookieの有効期限(日)
	var cookieName = "modal_gate_bollinger";
	var gateState = null;
	function safeLocalStorage(method, key, value){
		try{
			if(!window.localStorage){
				return null;
			}
			if(method === "get"){
				return localStorage.getItem(key);
			}else if(method === "set"){
				localStorage.setItem(key, value);
			}else if(method === "remove"){
				localStorage.removeItem(key);
			}
		}catch(e){
			return null;
		}
	}
	gateState = safeLocalStorage("get", cookieName);
	if(!gateState){
		gateState = $.cookie(cookieName) || sessionStorage.getItem(cookieName);
	}
	var overlay;
	if(gateState !== "off"){
		overlay = $("<div></div>");
		overlay.css({
			"position":"fixed",
			"z-index":100,
			"top":0,
			"left":0,
			"height":100+"%",
			"width":100+"%",
			"background":"#000",
			"opacity":opacity
		});
		$("body").append(overlay);
		modal.addClass("modal--open");
	}
	button.click(function(e){
		e.preventDefault();
		if(overlay){
			$(overlay).fadeOut("slow");
		}
		modal.removeClass("modal--open");
		var expires = new Date();
		expires.setDate(expires.getDate()+limitDays);
		$.cookie(cookieName, "off", {expires:expires, path:"/"});
		sessionStorage.setItem(cookieName, "off");
		safeLocalStorage("set", cookieName, "off");
		return false;
	});
	$(".remove_cookie").click(function(){
		$.removeCookie(cookieName, {expires:-1, path:"/"});
		sessionStorage.removeItem(cookieName);
		safeLocalStorage("remove", cookieName);
		location.reload();
	});
});