window.addEvent('domready', function() {
	promoVars.amount = 1*$('promoAmount').innerHTML;							 
	promoVars.autoScroll = setInterval('nextPromo(false)',5000);
});
var promoVars = {
	left:0,
	width:323,
	counter:1,
	autoScroll: null
}

function prevPromo(isClicked){
	if(isClicked) clearInterval(promoVars.autoScroll);
	if(promoVars.counter == 1){
		promoVars.left = -promoVars.width*(promoVars.amount);
		promoVars.counter = promoVars.amount+1;	
	}
	$('slides').tween('left', [promoVars.left, promoVars.left+promoVars.width]);
	promoVars.left += promoVars.width;
	promoVars.counter -= 1
	$('promoCounter').innerHTML = promoVars.counter;
};

function nextPromo(isClicked){
	if(isClicked) clearInterval(promoVars.autoScroll);
	if(promoVars.counter == promoVars.amount){
		promoVars.left = promoVars.width;
		promoVars.counter = 0;		
	}
	$('slides').tween('left', [promoVars.left, promoVars.left-promoVars.width]);
	promoVars.left -= promoVars.width;
	promoVars.counter += 1
	$('promoCounter').innerHTML = promoVars.counter;
};