$(document).ready(function(){
  var currentPosition = 0;
  var slideHeight = 46;
  var flipSpeed = 6000;
  var slides = $('.item');
  var numberOfSlides = slides.length;

  // Remove scrollbar in JS
  $('#info-scroll').css('overflow', 'hidden');

  // Wrap all .slides with #slideInner div
  slides
  .wrapAll('<div id="slideInner"></div>')
  // Float left to display horizontally, readjust .slides width
  .css({
    'float' : 'left',
    'height' : slideHeight
  });

  // Set #slideInner height equal to total width of all slides
  $('#slideInner').css('height', slideHeight * numberOfSlides);

	// loop through news items
	var run = setInterval(function(){
    // Determine new position
      currentPosition = currentPosition+1;
	
	if(currentPosition>numberOfSlides-1) {
      currentPosition = 0;
	} else if(currentPosition < 0) {
      currentPosition = numberOfSlides-1;
	} 
	
      // Move slideInner using margin-left
      $('#slideInner').animate({
        'marginTop' : slideHeight*(-currentPosition)
      });
	 }, flipSpeed);

  // Create event listeners for .controls clicks
  $('.control')
    .bind('click', function(){
    // Determine new position
      currentPosition = ($(this).attr('id')=='downControl')
    ? currentPosition+1 : currentPosition-1;
	
	if(currentPosition>numberOfSlides-1) {
      currentPosition = 0;
	  // currentPosition = currentPosition-1
	} else if(currentPosition < 0) {
      currentPosition = numberOfSlides-1;
	  // currentPosition = currentPosition+1
	} 
	
      // Hide / show controls
      // manageControls(currentPosition);
      // Move slideInner using margin-left
      $('#slideInner').animate({
        'marginTop' : slideHeight*(-currentPosition)
      });
	
    });
	
	  // manageControls: Hides and shows controls depending on currentPosition
  function manageControls(position){
	  alert('blah');
    // Hide left arrow if position is first slide
    if(position==0){ $('#upControl').html('<img src="images/buttons/arrow_up_off.gif" />') }
    else{ $('#upControl').html('<img src="images/buttons/arrow_up_on.gif" />') }
    // Hide right arrow if position is last slide
    if(position==numberOfSlides-1){ $('#downControl').html('<img src="images/buttons/arrow_down_off.gif" />') }
    else{ $('#downControl').html('<img src="images/buttons/arrow_down_on.gif" />') }
    }

});