var handlePrevButtonState = function(type, args) {

	var enabling = args[0];
	var leftImage = args[1];
	if(enabling) {
		leftImage.src = "images/left-enabled.gif";	
	} else {
		leftImage.src = "images/left-disabled.gif";	
	}
	
};

var handleNextButtonState = function(type, args) {

	var enabling = args[0];
	var rightImage = args[1];
	
	if(enabling) {
		rightImage.src = "images/right-enabled.gif";
	} else {
		rightImage.src = "images/right-disabled.gif";
	}
	
};


var carousel; 
var pageLoad = function() 
{
	carousel = new YAHOO.extension.Carousel("mycarousel", 
		{
			numVisible:        4,
			animationSpeed:    0.15,
			scrollInc:         1,
			navMargin:         25,
			prevElement:     "prev-arrow",
			nextElement:     "next-arrow",
			size:              13,
			prevButtonStateHandler:   handlePrevButtonState,
			nextButtonStateHandler:   handleNextButtonState
		}
	);

};

YAHOO.util.Event.addListener(window, 'load', pageLoad);