var scrollXpx = 5; // mehr = schneller
var scrollXtimer;

function scrollDenDivX( value ) {
	
	clearTimeout(scrollXtimer);
	div = document.getElementById('scrollDivX');
	x = div.scrollLeft;
	
		
	if( value == 1 ) {
		x -= scrollXpx;
	}


	if( value == 2 ) {
		x += scrollXpx;
	}
	
	if( x <= div.scrollWidth - div.offsetWidth + scrollXpx && x >= 0 - scrollXpx){
		div.scrollLeft = x;
		scrollXtimer = setTimeout('scrollDenDivX(' + value + ')',20);
	}

	if( x < 0|| x > div.scrollWidth - div.offsetWidth ){
		clearTimeout(scrollXtimer);
	}
}