var banner_pointer = 0;
var t;
var initialise = true;

function bannerEvent(){
	if (!document.getElementsByTagName) return false;
  if (!document.getElementById) return false;
  
	banner_pointer++;
	if(banner_pointer == 6){
		banner_pointer = 1;
	}
	var banner1 = document.getElementById("banner1");
	var banner2 = document.getElementById("banner2");
	var banner3 = document.getElementById("banner3");
	var banner4 = document.getElementById("banner4");
	var banner5 = document.getElementById("banner5");
	
	var tab1 = document.getElementById("tab1");
	var tab2 = document.getElementById("tab2");
	var tab3 = document.getElementById("tab3");
	var tab4 = document.getElementById("tab4");
	var tab5 = document.getElementById("tab5");
	
	for(var i=1; i<=5; i++){
		
		if(eval("banner"+i)){
			if(i == banner_pointer){
				Effect.Appear("banner"+i);
				eval("tab"+i).className = "on";
				//tt = setTimeout("changeTab("+i+")", 1000);
			}else{
				Effect.Fade("banner"+i);
				eval("tab"+i).className = "";
			}
		}
	}
	t = setTimeout("bannerEvent()", 3000);
}

function changeTab(i){
	ele = document.getElementById("tab"+i);
	ele.className = "on";
}

addLoadEvent(bannerEvent);