function hideStationBigbox()
{
	var stationbb = document.getElementById('station_bigbox');
	if (stationbb)
	{
		stationbb.innerHTML = "";
		stationbb.style.display = "none";
		stationbb.style.zIndex 	= "-2";
	}
}
function loadStationBigbox(adurl)
{
	if ('undefined' == typeof(document.getElementById)) return;
	var stationBigboxInner = '<iframe src="' + adurl + '" width="300" height="250"'
	+ ' scrolling="no" frameborder="0" marginheight="0" marginwidth="0"'
	+ ' style="margin: 0; padding: 0;" allowtransparency="true">&nbsp;</iframe>';
	var stationbb = document.getElementById('station_bigbox');
	if (stationbb)
	{
		stationbb.innerHTML = stationBigboxInner;
		stationbb.style.display = "block";
		stationbb.style.zIndex 	= "500";
	}
}
function updateWindowTitle(newTitle)
{
	top.document.title = newTitle;
}
function prerollTracking(trackingUrl)
{
	document.getElementById("preroll_tracking_iframe").contentWindow.location.replace(trackingUrl);
}