var handlePrevButtonState = function(type, args) {

    var enabling = args[0];
    var leftImage = args[1];
    if(enabling) {
        leftImage.src = left_enabled_img;    
    } else {
        leftImage.src = left_disabled_img;    
    }
    
};

var handleNextButtonState = function(type, args) {

    var enabling = args[0];
    var rightImage = args[1];
    
    if(enabling) {
        rightImage.src = right_enabled_img;
    } else {
        rightImage.src = right_disabled_img;
    }
    
};

var carousel; 
var pageLoad = function() 
{
		if( people_count <= 3)
		{
			var auto_play = 0;
			var wrap = false;
		} else {
			var auto_play = 5000;
			var wrap = true;
		}
		carousel = new YAHOO.extension.Carousel("mycarousel", 
        {
            numVisible:        3,
            animationSpeed:    0.5,
			autoPlay:          auto_play,
			wrap:              wrap,
            scrollInc:         3,
            navMargin:         0,
            prevElement:       "prev-arrow",
            nextElement:       "next-arrow",
            size:              people_count,
            prevButtonStateHandler:   handlePrevButtonState,
            nextButtonStateHandler:   handleNextButtonState
        }
    );

};

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