/* *************************************
概要：フォントサイズ変更機能用JSファイル
***************************************/
//$(document).ready(function() {
//alert("DOMContentLoaded");
$(function() {
	var currentstyle = readCookie('fontStyle');
	if (currentstyle) {
		switchFont(currentstyle);

		if (currentstyle == "fontL") {
			document.getElementById("btnmiddle").src = "/common/images/header_btn02.jpg";
			document.getElementById("btnlarge").src = "/common/images/header_btn03_on.jpg";
		}else {
			document.getElementById("btnlarge").src = "/common/images/header_btn03.jpg";
			document.getElementById("btnmiddle").src = "/common/images/header_btn02_on.jpg";
		}
	};

	$("img#btnlarge").click(function() {
		switchFont("fontL");
		document.getElementById("btnmiddle").src = "/common/images/header_btn02.jpg";
		document.getElementById("btnlarge").src = "/common/images/header_btn03_on.jpg";
		return false;
	});
	
	$("img#btnmiddle").click(function() {
		switchFont("fontM");
		document.getElementById("btnmiddle").src = "/common/images/header_btn02_on.jpg";
		document.getElementById("btnlarge").src = "/common/images/header_btn03.jpg";
		return false;
	});

});

function switchFont(className) {
	$("body").removeAttr("class").addClass(className);
	createCookie('fontStyle', className, 365);
};

function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
return null;
}