var currentImage=0; var interval=4500; var t;
var ImageList=document.getElementById('banner').getElementsByTagName('IMG');

function hideImage(IMG){
	if(ImageList[IMG].style.display != "none")
		new Effect.Fade(ImageList[IMG]);
}

function showImage(IMG){
	if(ImageList[IMG].style.display == "none")
		new Effect.Appear(ImageList[IMG]);
}

function roll(){
	hideImage(currentImage);
	if(currentImage < (ImageList.length-1))
		currentImage++;
	else
		currentImage=0;
	showImage(currentImage);
	t=setTimeout("roll();",interval);
}

t=setTimeout("roll();",0);