var _currentSlideImage = null;
var _naRotator_maxIndex = 3;
var _naRotator_currentIndex = 1;
var _rotatorIntervalTimerId = null;
var _rotatorIntervalMS = 5000;

function GetNextRotatorIndex()
{
	if (_naRotator_currentIndex >= _naRotator_maxIndex)
		_naRotator_currentIndex = 0;
	return ++_naRotator_currentIndex;
}
function SelectRotatorImage(imageIndex)
{
	window.clearInterval(_rotatorIntervalTimerId);

	var slideImage = $(".na_Slide"+imageIndex).get(0); 
	if (slideImage && slideImage != _currentSlideImage) 
	{
		slideImage.style.display = "inline"; 
		if (_currentSlideImage) 
		_currentSlideImage.style.display = "none"; 
		_currentSlideImage = slideImage;
	}
	_rotatorIntervalTimerId = window.setInterval("SelectRotatorImage(GetNextRotatorIndex())", _rotatorIntervalMS);
}
$(document).ready(function() 
{ 
	$(" div.naRotator > div.naRotator_Slide ").each(function (i) {$(this).addClass("na_Slide" + (++i));});
	$(" div.naRotator > div.naRotator_Button ").each(function (i) {$(this).addClass("na_Button" + (++i));});
	_currentSlideImage = $(".naRotator_Slide1").get(0);
	
	$(".naRotator_Button").click(function(e) 
	{ 
		if (e.target) 
		{ 
			var iPos = e.target.className.indexOf("na_Button");
			if (iPos >= 0) { _naRotator_currentIndex = e.target.className.substr(iPos + 9, 1); } 
		} 
		SelectRotatorImage(_naRotator_currentIndex); 
	}); 

	_rotatorIntervalTimerId = window.setInterval("SelectRotatorImage(GetNextRotatorIndex())", _rotatorIntervalMS);
} );