function tendinaGo(){
		try{
			clearInterval(rollerUhr);
			dir = dir * (-1);
		}
		catch(error){
			
		}
		moveY = Math.abs(startY)-Math.abs(endY);
		rollerUhr = setInterval("roller();",rollerUhrT);
	}
	
	function roller(){
		moveY = (moveY / faktorY) ;
		posY = moveY*dir + posY;
		if (Math.abs(moveY)<=1){
			if (dir>0){
				posY = endY;
			}
			else {
				posY = startY;
			}
			clearInterval(rollerUhr);
		}
		chatObj.style.top = posY+"px";
	}
	
	// SETTINGS
	function initRoller(){
		chatObj = document.getElementById("chat");
		dir = +1;
		chatHeight = chatObj.style.top+"";
		chatHeight = chatHeight.substring(0,chatHeight.toLowerCase().indexOf("px"));
		startY = 1*Number(chatHeight);
		endY = -3;
		posY = startY;
		faktorY = 2;
		eiUhrT = 8000;
		rollerUhrT = 50;
	// INIZIA
		tendinaGo();//ESCI SCROLLING
		eiUhr = setInterval("tendinaGo();",eiUhrT);//INIZIA TEMPORIZZATORE
	}
	adessoVai = setTimeout("initRoller();",1000);