var scroller = function(listId,scrollAmount) {
	var curIndex = 0;
	
	var list = document.getElementById(listId).getElementsByTagName('LI');
	
	for (var i=0; i<list.length; i++) {
		if(list[i].className == 'show') {
			curIndex = i;
		}
	}
	
	if(curIndex == 0 && scrollAmount < 0) {
		curIndex = list.length-1;
	} else if(curIndex == (list.length-1) && scrollAmount > 0) {
		curIndex = 0;
	} else {
		curIndex = curIndex + scrollAmount;
	}
	
	for (var i=0; i<list.length; i++) {
		list[i].className = null;
	}
	
	//for (var i=0; i<displayCount; i++) {
	//	list[curIndex+i].className = 'show';
	//}
	
	list[curIndex].className = 'show';
	
};