scrollStep=3;
	scrollTime=15;
	
	timerLeft=0;
	timerRight=0;
	

	function move_up()
	{
        clearTimeout(timerRight); 
		document.getElementById('podstrona_zawartosc').scrollTop+=scrollStep;
		timerRight=setTimeout("move_up('podstrona_zawartosc')",scrollTime);
	}

	function move_down()
	{
		clearTimeout(timerLeft);
		document.getElementById('podstrona_zawartosc').scrollTop-=scrollStep;
		timerLeft=setTimeout("move_down('podstrona_zawartosc')",scrollTime);
	}


	function stopMe()
	{
		clearTimeout(timerRight); 
		clearTimeout(timerLeft);
	}
if (window.addEventListener) {
	window.addEventListener("load",initScroll,false);
} else if (window.attachEvent) {
	window.attachEvent("onload",initScroll);
} else {
	window.onload = function() {initScroll();}
}
function initScroll() { 
    if(document.getElementById('podstrona_zawartosc').scrollHeight>363) {
        document.getElementById('podstrona_arrow_up').style.display='block';
        document.getElementById('podstrona_arrow_down').style.display='block';
    }
 }