$(document).ready(function(){
  var currentPosition = 0;
  var slideWidth = 893;
  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 }
	// Hide / show controls
	manageControls(currentPosition);
	// Move slideInner using margin-left
	$('#slideInner').animate({
	'marginLeft' : slideWidth*(-currentPosition)
	});
	}, 7000);	
});