<!--
///////////////////////////////////////////////////////////////////
var plat = navigator.platform;
var win;
var mac;

//OS判定
if (plat.indexOf("Win") != -1) {
	win = true;
	mac = false;
}else{
	win = false;
	mac = true;
}
///////////////////////////////////////////////////////////////////
function getBrowserName()
{
    var aName  = navigator.appName.toUpperCase();
    if (aName.indexOf("NETSCAPE") >= 0)  return "Netscape";
    if (aName.indexOf("MICROSOFT") >= 0) return "Explorer";
    return "";
}
function getBrowserVersion()
{
	var browser = getBrowserName();
	var version = 0;
	var s = 0;
	var e = 0;
	var appVer  = navigator.appVersion;
	if (browser == "Netscape")
	{
		s = appVer.indexOf(" ",0);
		version = eval(appVer.substring(0,s));
		if (version >= 5) version++;
	}
	if (browser == "Explorer")
	{
		appVer  = navigator.userAgent;
		s = appVer.indexOf("MSIE ",0) + 5;
		e = appVer.indexOf(";",s);
		version = eval(appVer.substring(s,e));
	}
	return version;
}

browser=getBrowserName();
version=getBrowserVersion();

if(win){
if(browser=="Netscape"){
	var level = getCookie("letterLevel");
	if (level == "") {
		level = 2;
		//xCssSet_NN(level);
		xCssSet_U6(level);
	}else{
    	//xCssSet_NN(level);
		xCssSet_U6(level);
	}
}else{
	//if(version>=6){
		var level = getCookie("letterLevel");
		if( level == "") {
			level = 2;
			xCssSet_IE( level );
		}else{
			xCssSet_IE( level );
		}
	//}
	/*else{
		var level = getCookie("letterLevel");
		if( level == "") {
			level = 2;
			xCssSet_U6( level );
		}else{
			xCssSet_U6( level );
		}
	}
	*/
}
}

//クッキー取得処理
function getCookie(key,  tmp1, tmp2, xx1, xx2, xx3) {
    tmp1 = " " + document.cookie + ";";
    xx1 = xx2 = 0;
    len = tmp1.length;
    while (xx1 < len) {
        xx2 = tmp1.indexOf(";", xx1);
        tmp2 = tmp1.substring(xx1 + 1, xx2);
        xx3 = tmp2.indexOf("=");
        if (tmp2.substring(0, xx3) == key) {
            return(unescape(tmp2.substring(xx3 + 1, xx2 - xx1 - 1)));
        }
        xx1 = xx2 + 1;
    }
    return("");
}

function xCssSet_NN(level){
	id='css';
	url = '/shared/style/';
	if(level==1){
		url += "small.css";
	}else if(level==2){
		url += "normal.css";
	}else if(level==3){
		url += "big.css";
	}else{
		url += "normal.css";
	}
	if(!document.getElementById) return false;
	var element = document.getElementById(id);
	if(!element || !element.cloneNode) return false;
	var new_node = element.cloneNode(true);
	new_node.href = url;
	element.parentNode.replaceChild(new_node,element);
	return true;
}

function xCssSet_IE(level){
	var id = "css";
	var cssFile = '/shared/style/';
	if(level==1){
		cssFile += "small.css";
	}else if(level==2){
		cssFile += "normal.css";
	}else if(level==3){
		cssFile += "big.css";
	}else{
		cssFile += "normal.css";
	}
	var sheets = document.styleSheets;
	for(i=0;i<sheets.length;i++){
		if(sheets[i].title=="Size1"){
			sheets[i].disabled = true;
		}else if(sheets[i].title=="Size2"){
			sheets[i].disabled = true;
		}else if(sheets[i].title=="Size3"){
			sheets[i].disabled = true;
		}
	}
	if(!document.getElementById){
		return false;
	}
	var element = document.getElementById(id);
	if(!element || !element.cloneNode){
		return false;
	}
	var new_node = element.cloneNode(true);
	new_node.href = cssFile;
	element.parentNode.replaceChild(new_node,element);
	return true;
	xSetCookie(level);
}

function xCssSet_U6(level) {
	var sheets = document.styleSheets;
	for(i=0;i<sheets.length;i++){
		if(level==1){
			if(sheets[i].title=="Size1"){
				sheets[i].disabled = false;
			}else if(sheets[i].title=="Size2"){
				sheets[i].disabled = true;
			}else if(sheets[i].title=="Size3"){
				sheets[i].disabled = true;
			}else if(sheets[i].title=="css"){
				sheets[i].disabled = true;
			}else{
				sheets[i].disabled = false;
			}
		}
		if(level==2){
			if(sheets[i].title=="Size1"){
				sheets[i].disabled = true;
			}else if(sheets[i].title=="Size2"){
				sheets[i].disabled = false;
			}else if(sheets[i].title=="Size3"){
				sheets[i].disabled = true;
			}else if(sheets[i].title=="css"){
				sheets[i].disabled = true;
			}else{
				sheets[i].disabled = false;
			}
		}
		if(level==3){
			if(sheets[i].title=="Size1"){
				sheets[i].disabled = true;
			}else if(sheets[i].title=="Size2"){
				sheets[i].disabled = true;
			}else if(sheets[i].title=="Size3"){
				sheets[i].disabled = false;
			}else if(sheets[i].title=="css"){
				sheets[i].disabled = true;
			}else{
				sheets[i].disabled = false;
			}
		}
	}
}

function xSetCookie(level){
	var set = "letterLevel=" + level +"; expires=Tue, 1-Jan-2030 00:00:00 GMT;"
	document.cookie = set;
}

//文字縮小ボタン押下
function xClickSmall6(){
	var level = getCookie("letterLevel");
	if (level != "") {
		level--;
		if(level<1) level = 1;
	}else{
		level = 1;
	}
	xSetCookie(level);
	//
	if(browser=="Netscape"){
		xCssSet_NN(level);
	}else{
    	xCssSet_IE(level);
	}
}
//文字拡大ボタン押下
function xClickBig6(){
	var level = getCookie("letterLevel");
	if (level != "") {
		level++;
		if(level>3) level = 3;
	}else{
		level = 3;
	}
	xSetCookie(level);
	//
	if(browser=="Netscape"){
		xCssSet_NN(level);
	}else{
    	xCssSet_IE(level);
	}
}
//文字縮小ボタン押下
function xClickSmall(){
	var level = getCookie("letterLevel");
	if (level != "") {
		level--;
		if(level<1) level = 1;
	}else{
		level = 1;
	}
	xSetCookie(level);
	//
	xCssSet_U6(level);

}
//文字拡大ボタン押下
function xClickBig(){
	var level = getCookie("letterLevel");
	if (level != "") {
		level++;
		if(level>3) level = 3;
	}else{
		level = 3;
	}
	xSetCookie(level);
	//
	xCssSet_U6(level);
}
//-->