function initScroller(blockNr,totalBlocks) {
	var blockWidth = 930;
	var aktBlock = blockNr;	
	var totalBlocks = totalBlocks;	
	
	
	if (aktBlock <= 1) $('btnPrev').setStyle('opacity', 0);
	if (aktBlock >= totalBlocks) $('btnNext').setStyle('opacity', 0);
	
	$('btnPrev').addEvent('click', function() {		
		if (aktBlock > 1) aktBlock --;
		scrollDiv ((aktBlock-1) *-blockWidth);		
		
		if (aktBlock <= 1) $('btnPrev').fade('out');		
		if (aktBlock <= totalBlocks) $('btnNext').fade('in');				
	});
										 
	$('btnNext').addEvent('click', function() {
		if (aktBlock < totalBlocks) aktBlock ++;		
		scrollDiv ((aktBlock-1) *-blockWidth);
		
		if (aktBlock >= 1) $('btnPrev').fade('in');		
		if (aktBlock >= totalBlocks) $('btnNext').fade('out');			
	});		
}

function scrollDiv (xPos) {
	$('containerScrollContent').set('tween', {duration: 1000, transition: Fx.Transitions.Quad.easeOut}).tween('left', xPos);
}