var handlePrevButtonState = function(type, args) {

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

    var enabling = args[0];
    var rightImage = args[1];
    
    if(enabling) {
        rightImage.src = "../images/carousel/right-enabled.gif";
    } else {
        rightImage.src = "../images/carousel/right-disabled.gif";
    }
    
};
var pageLoad = function() 
{
    var carousel = new YAHOO.extension.Carousel("mycarousel", 
        {
            numVisible:        5,
            animationSpeed:   .15,
            scrollInc:         3,
            navMargin:         40,
            prevElement:     "prev-arrow",
            nextElement:     "next-arrow",
            size:              17,
            prevButtonStateHandler:   handlePrevButtonState,
            nextButtonStateHandler:   handleNextButtonState
        }
    );

};