var fontSizeUnit = "%";
var perOrder = 10;
var defaultSize = 82;
var largeSize = 100;
var smallSize = 70;
var ckName = "sumco";
var ckDays = 30;
var ckPath = "/"

var fsCK = GetCookie( ckName );
var currentSize = fsCK == null ? defaultSize : eval( fsCK );

document.writeln('<style type="text/css">');
document.write('body{font-size:' + currentSize + fontSizeUnit+ '}');
document.writeln('</style>');

function fsc( CMD ){
	var newSize = currentSize;
	if (CMD == "larger") {
		newSize = largeSize;
	} else if (CMD == "smaller" && currentSize > perOrder) {
		newSize = smallSize;
	} else if (CMD == "default") {
		newSize = defaultSize;
	}
	if (currentSize != newSize) {
		document.getElementsByTagName('body')[0].style.fontSize = newSize + fontSizeUnit;
		SetCookie(ckName, newSize);
		currentSize = newSize;
		currentImg();
	}
}

function currentImg () {
	if (currentSize == defaultSize) {
		setFontItem('smallerFont', false);
		setFontItem('defaultFont', true);
		setFontItem('largerFont' , false);
	} else if (currentSize > defaultSize) {
		setFontItem('smallerFont', false);
		setFontItem('defaultFont', false);
		setFontItem('largerFont' , true);
	} else {
		setFontItem('smallerFont', true);
		setFontItem('defaultFont', false);
		setFontItem('largerFont' , false);
	}
}

function setFontItem (id, active) {
	var e = document.getElementById(id);
	e.className = 'actRollover' + (active ? ' actSelect' : '');
	e.setAttribute('src', (active ? e.activeSrc : e.originalSrc));
}


var WinFontSizeLoad = window.onload;
window.onload = function(e) {
	if (WinFontSizeLoad) {WinFontSizeLoad(e);}
	currentImg();
}

function SetCookie( name , value ){
	var dobj = new Date();
	dobj.setTime(dobj.getTime() + 24 * 60 * 60 * ckDays * 1000);
	var expiryDate = dobj.toGMTString();
	document.cookie = name + '=' + escape(value) + ';expires=' + expiryDate + ';path=' + ckPath;
}

function GetCookie (name){
	var arg  = name + "=";
	var alen = arg.length;
	var clen = document.cookie.length;
	var i = 0;
	while (i < clen){
		var j = i + alen;
		if (document.cookie.substring(i, j) == arg)
			return getCookieVal (j);
		i = document.cookie.indexOf(" ", i) + 1;
		if (i == 0) break;
	}
	return null;
}

function getCookieVal (offset){
	var endstr = document.cookie.indexOf (";", offset);
	if (endstr == -1)
	endstr = document.cookie.length;
	return unescape(document.cookie.substring(offset,endstr));
}

function DeleteCookie(name){
	if (GetCookie(name)){
		document.cookie = name + '=' + '; expires=Thu, 01-Jan-70 00:00:01 GMT;path='+ckPath;
	}
}