var headLine = 0;
var timer;
function initPhotoRotator(){
	timer = setInterval ("goNextHeadLine()", 6000);
}
function currentHeadline(id) {
   for(i=1;i<=4;i++){
      document.getElementById('headline_menu'+i).className = 'off';
   }
   document.getElementById('headline_menu'+id).className = 'current';
}
function headLine_click(position){
	clearInterval(timer);
	changeHeadline(position);
}
function changeHeadline(position) {
	
	headLine = position;
   var multiplier = position - 1;
   var effect = new Fx.Style('bigBox', 'top', {
      duration: 400,
      transition: Fx.Transitions.Sine.easeInOut
   });

   var top = document.getElementById("bigBox").style.marginTop;
       if (top == "")
         top = 0;

   effect.start(parseInt(-(250*multiplier)));
   currentHeadline(position);
}
function goNextHeadLine(){
	if(headLine == 4){
		headLine = 0;	
	}
	headLine += 1;
	changeHeadline(headLine);
}