ref = '';

try
{
	if (document.referrer)	ref = escape(document.referrer);
}
catch(e)
{
	ref = '';
}

document.write('<sc'+'ript src="http://sider.dk/stat/stat.php?screen_width='+(screen.width)+'&screen_height='+(screen.height)+'&referrer='+ref+'"></sc'+'ript>');