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

function checkBrowserWidth()
{
    var theWidth = getBrowserWidth();
    if (theWidth == 0)
    {
        var resolutionCookie = document.cookie.match(/(^|;)dsn_res_layout[^;]*(;|$)/);
        if (resolutionCookie != null)
        {
            setStylesheet(unescape(resolutionCookie[0].split("=")[1]));
        }
        addLoadListener(checkBrowserWidth);
        return false;
    }

    if (theWidth > 1024)
    {
        setStylesheet("1280x1024");
        document.cookie = "dsn_res_layout=" + escape("1280x1024");
    }
    else
    {
        setStylesheet("1024x768");
        document.cookie = "dsn_res_layout=" + escape("1024x768");
    }
    return true;
};

function getBrowserWidth()
{
    if (window.innerWidth)
    {
        return window.innerWidth;
    }
    else if (document.documentElement && document.documentElement.clientWidth != 0)
    {
        return document.documentElement.clientWidth;
    }
    else if (document.body)
    {
        return document.body.clientWidth;
    }
    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;
};