var handlePrevButtonState = function(type, args) {
	var enabling = args[0];
	var leftImage = args[1];
	if (enabling) { leftImage.src = "images/arrowLeft.gif"; } 
	else { leftImage.src = "images/arrowLeftDisabled.gif";	}
};
var handleNextButtonState = function(type, args) {
	var enabling = args[0];
	var rightImage = args[1];
	if (enabling) { rightImage.src = "images/arrowRight.gif"; } 
	else { rightImage.src = "images/arrowRightDisabled.gif"; }
};
var pageLoad = function() {
	carousel = new YAHOO.extension.Carousel("mycarousel", 
	{
		numVisible:      3,
		animationSpeed:  0.15,
		scrollInc:       1,
		navMargin:       20,
		prevElement:     "prevArrow",
		nextElement:     "nextArrow",
		size:            6,
		prevButtonStateHandler:   handlePrevButtonState,
		nextButtonStateHandler:   handleNextButtonState
	}
	);
};
YAHOO.util.Event.addListener(window, 'load', pageLoad);