var bannerTimer = 180000;

function nextBanner()
{
	var f = document.getElementById('bannerFrame');
	f.contentWindow.location.reload(true);
	startBannerTimer()
	
	//show ad banner
	document.getElementById("adLabel").style.display = "";
}

function startBannerTimer()
{
	try {
		clearTimeout(to);
	} catch (e) {}
	
	// get next banner next time
	to = setTimeout("nextBanner()", bannerTimer);	
}


function insiteBannerStart(){
	//hide ad banner
	document.getElementById("adLabel").style.display = "none";
}