$(document).ready(function(){
  var currentPosition = 0;
  var slideWidth = 265;
  var slides = $('.slide');
  var numberOfSlides = slides.length;

  // Remove scrollbar in JS
  $('#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
  $('#slideshow')
	 .prepend('<span class=\"control\" id=\"leftControl\">Clicking moves left</span>')
	 .append('<span class=\"control\" id=\"rightControl\">Clicking moves right</span>');

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

  // Create event listeners for .controls clicks
  $('.control')
	 .bind('click', function(){
	 
	 // Determine new position
	currentPosition = ($(this).attr('id')=='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){ $('#leftControl').hide() } else{ $('#leftControl').show() }
	// Hide right arrow if position is last slide
	 if(position==numberOfSlides-1){ $('#rightControl').hide() } else{ $('#rightControl').show() }
}	
});