function setActiveStyleSheet(title)
{
	var as = document.getElementsByTagName("link");
	for (var i = 0, a; (a = as[i]); i++)
	{
		if (a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title"))
		{
			a.disabled = true;
			if (a.getAttribute("title") == title)
			{
				a.disabled = false;
			}
		}
	}
}

function getActiveStyleSheet()
{
	var as = document.getElementsByTagName("link");
	for (var i = 0, a; (a = as[i]); i++)
	{
		if (a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title") && !a.disabled)
		{
			return a.getAttribute("title");
		}
	}
	return null;
}

function getPreferredStyleSheet()
{
	var as = document.getElementsByTagName("link");
	for (var i = 0, a; (a = as[i]); i++)
	{
		if (a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("rel").indexOf("alt") == -1 && a.getAttribute("title"))
		{
			return a.getAttribute("title");
		}
	}
	return null;
}

function createCookie(name, value, days)
{
	var expires;
	if (days)
	{
		var date = new Date();
		date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
		expires = "; expires=" + date.toGMTString();
	}
	else
	{
		expires = "";
	}
	document.cookie = name + "=" + value + expires + "; path=/";
}

function readCookie(name)
{
	try
	{
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for (var i = 0, c; (c = ca[i]); i++)
	{
		while (c.charAt(0) == " ")
		{
			c = c.substring(1, c.length);
		}
		if (c.indexOf(nameEQ) == 0)
		{
			return c.substring(nameEQ.length, c.length);
		}
	}
	return null;
	}
	catch (e)
	{
		alert(e + "s");
	}
}

function cycleFontSize(lnk, imagePath)
{
	var sizes = ["small", "medium", "large"];
	//alert(title);
	var activeTitle = getActiveStyleSheet() || "medium";
	//alert(title);
	for (var i = 0, s; (s = sizes[i]); i++)
	{
		if (activeTitle == s)
		{
			var title = sizes[i + 1] || sizes[0];
			setActiveStyleSheet(title);
			var img = lnk.getElementsByTagName("img")[0];
			img.src = imagePath + "font_" + title + ".png";
			break;
		}
	}
}

addEvent(window, "unload", function()
{
	var title = getActiveStyleSheet();
	if (title)
	{
		createCookie("style", title, 365);
	}
});

var title = readCookie("style") || getPreferredStyleSheet();
setActiveStyleSheet(title);