<!--
var SaveDay = 30;
var SetSize = "";
var btS = "b_S.gif";
var btM = "b_M.gif";
var btL = "b_L.gif";

if (navigator.cookieEnabled) {
	SetSize = LoadCookie("FontSize");
}
if(!SetSize){
	SetSize = 'M';
}

document.getElementById("style").href = "/css/font-"+ SetSize + ".css";
switch (SetSize) {
	case "S":
	btS = "b_S_on.gif";
	break;
	
	case "L":
	btL = "b_L_on.gif";
	break;
	
	case "M":
	btM = "b_M_on.gif";
	break;
	
	default:
	btM = "b_M_on.gif";
	break;
}

//<![CDATA[
document.write ('文字の大きさ<a href="javascript: void(0);" onClick="FontSize(\'S\')"><img src="/img/' + btS + '" width="20" height="20" align="absmiddle" id="font-S" /></a><a href="javascript: void(0);" onClick="FontSize(\'M\')"><img src="/img/' + btM + '" width="24" height="24" align="absmiddle" id="font-M" /></a><a href="javascript: void(0);" onClick="FontSize(\'L\')"><img src="/img/' + btL + '" width="28" height="28" align="absmiddle" id="font-L" /></a>');
//]]>
BtChange(SetSize);


function FontSize(Size){
	document.getElementById("style").href = "/css/font-"+ Size + ".css";
	BtChange(Size);
	SaveCookie("FontSize", Size);
}

function SaveCookie(Name, val) {
	if (navigator.cookieEnabled) {
		setDay = new Date();
		setDay.setTime(setDay.getTime() + (SaveDay*1000*60*60*24));
		expDay = setDay.toGMTString();
		document.cookie = Name + "=" + escape(val) + ";path=/;expires=" + expDay;
	}
}

function LoadCookie(Name) {
	Name = Name + "=";
	tmpCookie = document.cookie + ";";
	St = tmpCookie.indexOf(Name);
	if(St != -1) {
		Ed = tmpCookie.indexOf(";", St);
		Data = unescape(tmpCookie.substring(St + Name.length, Ed));
		return Data;
	} else {
		return false;
	}
}

function BtChange(Size) {
	if (!Size) {
		Size = 'M';
	}
	document.getElementById("font-S").src = "/img/b_S.gif";
	document.getElementById("font-M").src = "/img/b_M.gif";
	document.getElementById("font-L").src = "/img/b_L.gif";
	document.getElementById("font-" + Size).src = "/img/b_"+ Size + "_on.gif";
}
//-->
