function random_banner(){
	var i=0;
	banners = new Array();
	banners[0] = '<a href="http://www.lehtiluukku.fi/lehdet/meidan_suomi" target="_blank"><img src="images/lehtiluukku_banneri_140x350.gif" alt="" border="0"></a>';
	banners[1] = '<a href="http://www.lehtiluukku.fi/lehdet/meidan_suomi" target="_blank"><img src="images/lehtiluukku_banneri_140x350.gif" alt="" border="0"></a>';
	today = new Date();
	i=today.getSeconds();
	n=banners.length;
	return banners[i-Math.round((i-1)/n)*n];
}

function random_banner2(){
	var i=0;
	banners = new Array();
	banners[0] = '<a href="http://www.matkapojat.fi" target="_blank"><img src="images/Matkapojat_140x350.gif" alt="" border="0"></a>';
	banners[1] = '<a href="http://www.matkapojat.fi" target="_blank"><img src="images/Matkapojat_140x350.gif" alt="" border="0"></a>';
	today = new Date();
	i=today.getSeconds();
	n=banners.length;
	return banners[i-Math.round((i-1)/n)*n];
}