function getObj(name)
{
  if (document.getElementById)
  {
  	this.obj = document.getElementById(name);
	this.style = document.getElementById(name).style;
  }
}
 
var doboz_height = 150;           //a lathato resz nagysaga pixelben
var lyrheight = 0;   // don't touch
var 	theTime = 100;  // don't touch
var time,time2,amount,DHTML;

function init()
{
	DHTML = (document.getElementById)
	if (!DHTML) return;
	 var x = new getObj('example');
		lyrheight = x.obj.offsetHeight;
  scrollayer2('example',-5);
}

function scrollayer(layername,amt)
{
	if (!DHTML) return;
	thelayer = new getObj(layername);
	if (!thelayer) return;
	amount = amt;
	realscroll();
}

function scrollayer2(layername,amt) {
 if (!DHTML) return;
	thelayer2 = new getObj(layername);
	if (!thelayer2) return;
 realscroll2(amt);
}

function realscroll2(amt) {
 var valami = parseInt(thelayer2.style.top);
 if (valami+amt <= lyrheight-doboz_height) {thelayer2.style.top = (doboz_height-amt)+'px';}
thelayer2.style.top = (valami+amt) + 'px';
time2 = setTimeout('realscroll2(-5)',200);
}

function realscroll()
{
var valami = parseInt(thelayer.style.top);
if (valami+amount > 0 ) {return;}
if (valami+amount <= doboz_height-lyrheight) {return;}
thelayer.style.top = (valami+amount) + 'px' ;
time = setTimeout('realscroll()',theTime);
}

function stopscroll()
{
	if (time) clearTimeout(time);
}

function stopscroll2()
{
	if (time2) clearTimeout(time2);
}