banners = new Array("http://image.weather.com/images/sat/cenamersat_720x486.jpg", 
					"http://image.weather.com/images/sat/caribsat_720x486.jpg", 
					"http://image.weather.com/images/sat/sasat_720x486.jpg", 
					"http://image.weather.com/images/sat/ussat_600x405.jpg")

index = 0
total = banners.length

function rotate() {
	index++
	if (index == total) index = 0;
	
	document.weather_banner.src = banners[index];
		
	setTimeout("rotate()", 5*1000);
}