/**
 * Custom button state handler for enabling/disabling button state. 
 * Called when the carousel has determined that the previous button
 * state should be changed.
 * Specified to the carousel as the configuration
 * parameter: prevButtonStateHandler
 **/
var handlePrevButtonState = function(type, args) {

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

  }
  
};


/**
 * Custom button state handler for enabling/disabling button state. 
 * Called when the carousel has determined that the next button
 * state should be changed.
 * Specified to the carousel as the configuration
 * parameter: nextButtonStateHandler
 **/
var handleNextButtonState = function(type, args) {

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

/**
 * You must create the carousel after the page is loaded since it is
 * dependent on an HTML element (in this case 'mycarousel'.) See the
 * HTML code below.
 **/
var carousel; // for ease of debugging; globals generally not a good idea

var pageLoad = function() 
{
  carousel = new YAHOO.extension.Carousel("mycarousel", 
    {
      numVisible:        5,
      animationSpeed:    0.6,
      scrollInc:         4,
      navMargin:         4,
      size:              Sponsoren,
      prevElement:       "prev-arrow",
      nextElement:       "next-arrow",
      prevButtonStateHandler:   handlePrevButtonState,
      nextButtonStateHandler:   handleNextButtonState,
      autoPlay: 5000,
               
                        wrap:true
    }
  );
};

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