$(document).ready(function(){
  var currentPosition = 0;
  var slideWidth = 560;
  var slides = $('.slide');

  var numberOfSlides = slides.length;

  $('#slidesContainer').css('overflow', 'hidden');
  slides
    
  	.wrapAll('<div id="slideInner"></div>')
	.css({
      'float' : 'left',
      'width' : slideWidth
    });

  $('#slideInner').css('width', slideWidth * numberOfSlides);

  $('#slideshow')

    .prepend('<span class="control" id="leftControl">Clicking moves left</span>')
    .append('<span class="control" id="rightControl">Clicking moves right</span>');

  manageControls(currentPosition);

  $('.control')
    .bind('click', function(){
	currentPosition = ($(this).attr('id')=='rightControl') ? currentPosition+1 : currentPosition-1;
    
    manageControls(currentPosition);
    $('#slideInner').animate({
      'marginLeft' : slideWidth*(-currentPosition)
    });
  });

  function manageControls(position){
	if(position==0){ $('#leftControl').hide() } else{ $('#leftControl').show() }
    if(position==numberOfSlides-1){ $('#rightControl').hide() } else{ $('#rightControl').show() }
  }	
  
  setInterval(function() {
		if(currentPosition==numberOfSlides-1){ currentPosition = 0 } else{ currentPosition = currentPosition+1 }
		manageControls(currentPosition);
		$('#slideInner').animate({
		'marginLeft' : slideWidth*(-currentPosition)
		});
  }, 8000);
});