var fs = GetCookie('fontsize');
var minfs = 70;
var maxfs = 90;

if (fs == null)
{
	pathname = location.pathname;
	myDomain = pathname.substring(0,pathname.lastIndexOf('/')) +'/';
	// Установка параметра expire на год вперед.
	var largeExpDate = new Date ();
	largeExpDate.setTime(largeExpDate.getTime() + (365 * 24 * 3600 * 1000));
	SetCookie('fontsize', 70, largeExpDate, myDomain);
}
else{
	document.getElementById('body').style.fontSize = fs + '%';
}


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

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 SetCookie (name, value)
{
	var argv = SetCookie.arguments;
	var argc = SetCookie.arguments.length;
	var expires = (argc > 2) ? argv[2] : null;
	var path = (argc > 3) ? argv[3] : null;
	var domain = (argc > 4) ? argv[4] : null;
	var secure = (argc > 5) ? argv[5] : false;
	document.cookie = name + "=" + escape (value) + ((expires == null) ? "" : ("; expires=" + expires.toGMTString())) + ((path == null) ? "" : ("; path=" + path)) + ((domain == null) ? "" : ("; domain=" + domain)) + ((secure == true) ? "; secure" : "");
}

function Sizedown(){
	fs = GetCookie('fontsize');
	if (fs > minfs)
	{
		pathname = location.pathname;
		myDomain = pathname.substring(0,pathname.lastIndexOf('/')) +'/';
		// Установка параметра expire на год вперед.
		var largeExpDate = new Date ();
		largeExpDate.setTime(largeExpDate.getTime() + (365 * 24 * 3600 * 1000));
		SetCookie('fontsize', parseInt(fs) - 10, largeExpDate, myDomain);
		fs = GetCookie('fontsize');
		document.getElementById('body').style.fontSize = fs + '%';
	}
}
function SizeUp(){
	fs = GetCookie('fontsize');
	if (fs < maxfs)
	{
		pathname = location.pathname;
		myDomain = pathname.substring(0,pathname.lastIndexOf('/')) +'/';
		// Установка параметра expire на год вперед.
		var largeExpDate = new Date ();
		largeExpDate.setTime(largeExpDate.getTime() + (365 * 24 * 3600 * 1000));
		SetCookie('fontsize', parseInt(fs) + 10, largeExpDate, myDomain);
		fs = GetCookie('fontsize');
		document.getElementById('body').style.fontSize = fs + '%';
	}
}
function SizeSet(size){
	pathname = location.pathname;
	myDomain = pathname.substring(0,pathname.lastIndexOf('/')) +'/';
	// Установка параметра expire на год вперед.
	var largeExpDate = new Date ();
	largeExpDate.setTime(largeExpDate.getTime() + (365 * 24 * 3600 * 1000));
	SetCookie('fontsize', size, largeExpDate, myDomain);
	fs = GetCookie('fontsize');
	document.getElementById('body').style.fontSize = fs + '%';
}