var url = location.href.toLowerCase();
var AV  = navigator.appVersion.toLowerCase();
var UA  = navigator.userAgent.toLowerCase();
var winBrowser = ( AV.indexOf("windows") != -1) ? true : false;
var wieBrowser = ( AV.indexOf("windows") != -1 && UA.indexOf("msie") != -1) ? true : false;
var wsfBrowser = ( AV.indexOf("windows") != -1 && UA.indexOf("safari") != -1) ? true : false;
var macBrowser = ( AV.indexOf("macintosh") != -1) ? true : false;
var mieBrowser = ( AV.indexOf("macintosh") != -1 && UA.indexOf("msie") != -1) ? true : false;
var msfBrowser = ( AV.indexOf("macintosh") != -1 && UA.indexOf("safari") != -1) ? true : false;

var cookieval = "";
var FontSizeNo = "";
if (document.cookie) {
	cookieval = document.cookie;
	FontSizeNo = cookieval.match(/size(\d)/);
	FontSizeNo = RegExp.$1;
}

var path = "";
if(url.indexOf("http") != -1){
	var urlpc = url.split('//');
}
else{
	var urlpc = url.split('stbri');
}
var urlpath = urlpc[1].split('/');
var urldir = urlpath.length-2;
if(urldir>0){
	for(var k=0; k<urldir; k++){ path = path + "../";}
}

if(wieBrowser){
	var ieversion = AV.match(/msie (\d)/);
	ieversion = RegExp.$1;
	if(ieversion == 6){
		document.execCommand("BackgroundImageCache",false,true);
	}
}

var arrayLength = 4;
var MyFontSize = new Array(arrayLength);
var MyLineHeight = new Array(arrayLength);
if(macBrowser){
	document.write('<link rel="stylesheet" type="text\/css" href="' + path + 'css\/mac.css" \/>');
	MyFontSize[1] ='10px';	MyLineHeight[1] ='130%';
	MyFontSize[2] ='11px';	MyLineHeight[2] ='140%';
	MyFontSize[3] ='13px';	MyLineHeight[3] ='150%';

}else{
	MyFontSize[1] ='10px';	MyLineHeight[1] ='130%';
	MyFontSize[2] ='13px';	MyLineHeight[2] ='140%';
	MyFontSize[3] ='15px';	MyLineHeight[3] ='150%';
}

if (document.images){
	var BtnImageAct1 = new Image(); BtnImageAct1.src= path + "images/small_a.gif";
	var BtnImageAct2 = new Image(); BtnImageAct2.src= path + "images/midiam_a.gif";
	var BtnImageAct3 = new Image(); BtnImageAct3.src= path + "images/big_a.gif";
	var BtnImageOff1 = new Image(); BtnImageOff1.src= path + "images/small.gif";
	var BtnImageOff2 = new Image(); BtnImageOff2.src= path + "images/midiam.gif";
	var BtnImageOff3 = new Image(); BtnImageOff3.src= path + "images/big.gif";
}

function chgFSimg(n){
	var FontSizeBtnID = "";
	for(var i=1; i<arrayLength; i++){
		FontSizeBtnID = "fsid" + i;
		if(i==n){
			document.getElementById(FontSizeBtnID).src = eval('BtnImageAct' + i + '.src');
			document.getElementById(FontSizeBtnID).style.cursor = 'default';
		}else{
			document.getElementById(FontSizeBtnID).src = eval('BtnImageOff' + i + '.src');
			document.getElementById(FontSizeBtnID).style.cursor = 'pointer';
		}
	}
}

function chgCV(v){
	var deltime = new Date();
	deltime.setTime(deltime.getTime() + 1000*50);
	document.cookie = "fontsize=size" + v + "; path=/; expires=" + deltime.toGMTString();
	chgFS(v);
}

function chgFS(s){
	if (document.getElementById('body')){
		document.getElementById('body').style.fontSize = MyFontSize[s];
		document.getElementById('body').style.lineHeight = MyLineHeight[s];
		chgFSimg(s);
	}
}

function CVFS(){
	document.write('<img src="' + path + 'images\/f_size.gif" width="63" height="23" alt="font size change" id="fsttl" \/>');
	document.write('<img src="' + path + 'images\/small.gif" onclick="chgCV(1)" width="28" height="23" alt="small font size" id="fsid1" \/>');
	document.write('<img src="' + path + 'images\/midiam.gif" onclick="chgCV(2)" width="28" height="23" style="margin:0px 5px 0px 5px" alt="medium font size" id="fsid2" \/>');
	document.write('<img src="' + path + 'images\/big.gif" onclick="chgCV(3)" width="28" height="23" alt="large font size" id="fsid3" \/>');
	
}