var ButtonType;
var FontSize;
var Unit;
var Obj;
var LinkColor;
var SelectedColor;
var SelectedBold;
Img = new Array();
ImgOn = new Array();
SizeList = new Array();
Units = new Array('%','px','pt','em');
Text = new Array();


Obj = 'content';

/* サイズの単位（0 = %、1 = px、2 = pt, 3= em） */
Unit = 0;


SizeList["M"] = 100;
SizeList["L"] = 115;


ButtonType = 1;


Text["M"] = "[中]";
Text["L"] = "[大]";


TextColor = 'blue';
SelectedColor = 'red';


SelectedBold = 0; 



Img["M"] = 'images/common/medium.gif';
Img["L"] = 'images/common/large.gif';



ImgOn["M"] = 'images/common/medium_on.gif';
ImgOn["L"] = 'images/common/large_on.gif';

/* Cookieの有効期限（日数） */
ExpireDays = 30;


/* -------------------- 実　行 ---------------------*/
ReadCookie();
Buttons();


/* -------------------- 関　数 ---------------------*/
/* ボタン書き出し */
function Buttons() {
	Button("M");
	Button("L");
}

/* 各ボタンの書き出し */
function Button(Size) {
	// 画像
	if (ButtonType) {
		if (SizeList[Size] == FontSize) {
			document.write('<img src="' + ImgOn[Size] + '"> ');
		} else {
			document.write('<a href="javascript:Write(' + SizeList[Size] + ');"><img src="' + Img[Size] + '" border=0"></a> ');
		}
	// テキスト
	} else {
		if (SizeList[Size] == FontSize) {
			var Style;
			if (SelectedBold) {
				Style = 'color:' + SelectedColor + ';font-weight:bold';
			} else {
				Style = 'color:' + SelectedColor;
			}
			document.write ('<span style="' + Style + '">' + Text[Size] + '</span> ');
		} else {
			document.write ('<a href="javascript:Write(' + SizeList[Size] + ');" style="color:' + TextColor + '">' + Text[Size] + '</a> ');
		}
	}
}

/* Cookie呼出 */
function ReadCookie() {
	if (document.cookie) {
		Cookie = document.cookie;
		if (Cookie.match(/FontSize=(\d*)/)) {
			FontSize = RegExp.$1;
		}
	}
}

/* フォントサイズ変更 */
function SizeChange() {
	if (FontSize != null) {
		document.getElementById(Obj).style.fontSize = FontSize + Units[Unit];
	}
}

/* Cookie書込 */
function Write(Size) {
	// 日付の計算
	var toDay = new Date;
	var xDay = new Date;
	parseInt(ExpireDays);
	xDay.setDate(toDay.getDate()+ExpireDays);
	ExpireText = xDay.toGMTString();
	// 書込
	document.cookie = "FontSize = " + Size + ";expires=" + ExpireText;
	// 再読込
	location.reload();
}