$(document).ready(function(){
  var panel6_currentPosition = 0;
  var panel6_slideWidth = 600;
  var panel6_slides = $('.panel6_slide');
  var panel6_numberOfSlides = panel6_slides.length;

  // Remove scrollbar in JS
  $('#panel6_slideshow').css('overflow', 'hidden');
  $('#panel6_slideshow').css('width', '580px');
  $('.ninesixty .panel .details').css('width', '330px');
  $('.ninesixty .panel #panel6_slideshow').css('width', '580px');

  // Wrap all .slides with #slideInner div
  panel6_slides
  .wrapAll('<div id="panel6_slideInner"></div>')
  // Float left to display horizontally, readjust .slides width
  .css({
    'float' : 'left',
    'width' : panel6_slideWidth
  });

  // Set #slideInner width equal to total width of all slides
  $('#panel6_slideInner').css('width', panel6_slideWidth * panel6_numberOfSlides);

  // Insert left and right arrow controls in the DOM
  $('.ninesixty #panel6 .link')
  	.append('<div id="panel6_slideshow_controls"><span class="panel6_control" id="panel6_previous">Previous</span><span class="panel6_control" id="panel6_next">Next</span></div>');

  // Hide left arrow control on first load
  manageControls(panel6_currentPosition);

  // Create event listeners for .controls clicks
  $('.panel6_control')
    .bind('click', function(){
    // Determine new position
      panel6_currentPosition = ($(this).attr('id')=='panel6_next')
    ? panel6_currentPosition+1 : panel6_currentPosition-1;

      // Hide / show controls
      manageControls(panel6_currentPosition);
      // Move slideInner using margin-left
      $('#panel6_slideInner').animate({
        'marginLeft' : panel6_slideWidth*(-panel6_currentPosition)
      });
    });

  // manageControls: Hides and shows controls depending on currentPosition
  function manageControls(position){
    // Hide left arrow if position is first slide
    if(position==0){ $('#panel6_previous').hide() }
    else{ $('#panel6_previous').show() }
    // Hide right arrow if position is last slide
    if(position==panel6_numberOfSlides-1){ $('#panel6_next').hide() }
    else{ $('#panel6_next').show() }
    }
  });