var galleryCarusel = function(action){
	var move = function(direction){
		var moveTo = 3;
		var stepSize = 665;
		var currentPos = $('.galleryCarusel').scrollLeft();
		
		var limitSize = (($(".imgSlideshow").size() / 4) * stepSize) - stepSize;
		if(direction == 'next'){
			if(currentPos < limitSize){
				moveTo = currentPos + stepSize;
			}else{
				moveTo = 0;
			}
		} else if(direction == 'prev'){
			if(currentPos > 0){
				moveTo = currentPos - stepSize;
			}else{
				moveTo = 0;
			}
		}
	
		$('.galleryCarusel').stop().animate({
			scrollLeft : moveTo
		},  350, 'easeInOutExpo', function(){
			
		});
	} 
	
	if(action == 'next'){
		move('next');
	}else if(action == 'prev'){
		move('prev');
		
	}else{
	alert('act: ' + action + ' not bind');
	}
}