function addLoadListener(fn)
{
	if (typeof window.addEventListener != 'undefined')
	{
		window.addEventListener('load', fn, false);
	}
	else if (typeof document.addEventListener != 'undefined')
	{
		document.addEventListener('load', fn, false);
	}
	else if (typeof window.attachEvent != 'undefined')
	{
		window.attachEvent('onload', fn);
	}
	else
	{
		return false;
	}
	return true;
};

function attachEventListener(target, eventType, functionRef, capture)
{
    if (typeof target.addEventListener != "undefined")
    {
        target.addEventListener(eventType, functionRef, capture);
    }
    else if (typeof target.attachEvent != "undefined")
    {
        target.attachEvent("on" + eventType, functionRef);
    }
    else
    {
        return false;
    }
    return true;
};

checkBrowserHeight();

attachEventListener(window, "resize", checkBrowserHeight, false);

function checkBrowserHeight()
{
	var theHeight = getBrowserHeight();
	if (theHeight ==0)
	{
		var resCookie = document.cookie.match(/(^|;)tmib_res_layout[^;]*(;|$)/);
		if (resCookie != null)
		{
			setStylesheet(unescape(resCookie[0].split("=")[1]));
		}
		addLoadListener(checkBrowserHeight);
		return false;
	}
	if (theHeight < 520)
	{
		setStylesheet("sll");
		document.cookie = "tmib_res_layout=" + escape("sll");
	}
	else if (theHeight > 620)
	{
		setStylesheet("xxl");
		document.cookie = "tmib_res_layout=" + escape("xxl");
	}
	else
	{
		setStylesheet("");
		document.cookie = "tmib_res_layout=";
	}
	return true;
};

function getBrowserHeight()
{
	if (window.innerHeight)
	{
		return window.innerHeight;
	}
	else if (document.documentElement && document.documentElement.clientHeight != 0)
	{
		return document.documentElement.clientHeight;
	}
	else if (document.body)
	{
		return document.body.clientHeight;
	}
	return 0;
};

function setStylesheet(styleTitle)
{
	var currTag;
	if (document.getElementsByTagName)
	{
		for (var i = 0; (currTag = document.getElementsByTagName("link")[i]); i++)
		{
			if (currTag.getAttribute("rel").indexOf("style") != -1 && currTag.getAttribute("title"))
			{
				currTag.disabled = true;

				if(currTag.getAttribute("title") == styleTitle)
				{
					currTag.disabled = false;
				}
			}
		}
	}
	return true;
};