$(document).ready(function(){
  var currentPosition = 0;
  var slideWidth = 650;
  var slides = $('.slick_slide');
  var numberOfSlides = slides.length;
 
  // Remove scrollbar in JS
  $('#slick_slidesContainer').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',
      'width' : slideWidth
    });
 
  // Set #slideInner width equal to total width of all slides
  $('#slideInner').css('width', slideWidth * numberOfSlides);
 
  // Insert controls in the DOM
  $('#slick_slideshow')
    .prepend('<span class="slick_control" id="slick_leftControl">Clicking moves left</span>')
    .append('<span class="slick_control" id="slick_rightControl">Clicking moves right</span>');
 
  // Hide left arrow control on first load
  manageControls(currentPosition);
 
  // Create event listeners for .controls clicks
  $('.slick_control')
    .bind('click', function(){
    // Determine new position
	currentPosition = ($(this).attr('id')=='slick_rightControl') ? currentPosition+1 : currentPosition-1;
    
	// Hide / show controls
    manageControls(currentPosition);
    // Move slideInner using margin-left
    $('#slideInner').animate({
      'marginLeft' : slideWidth*(-currentPosition)
    });
  });
 
  // manageControls: Hides and Shows controls depending on currentPosition
  function manageControls(position){
    // Hide left arrow if position is first slide
	if(position==0){ $('#slick_leftControl').hide() } else{ $('#slick_leftControl').show() }
	// Hide right arrow if position is last slide
    if(position==numberOfSlides-1){ $('#slick_rightControl').hide() } else{ $('#slick_rightControl').show() }
  }	
});