var topimage = 1;
var max = 4;
function toggleTopimage() {
	duration = 2000;
	Effect.toggle($('image'));	
	setTimeout("setNewImage", duration);	
	Effect.toggle($('image'));	
}


function setNewImage() {
	topimage = topimage + 1;
	if (topimage > max) {
		topimage = 1;
	}
	$('image').style.backgroundImage='url(/images/top_' + topimage + '.png)';
}


 var images = [  
     "/images/visual1.jpg",  
     "/images/visual2.jpg",       
     "/images/visual3.jpg",  
     "/images/visual4.jpg"
     //"/images/visual5.jpg",  
     //"/images/visual6.jpg"  
 ];