$(document).ready(function() {
  var currentPosition = 0;
  var slideWidth = 560;
  var slides = $('.slide');
  var numberOfSlides = slides.length;
  var slidesDirection = 1;

  $('#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() }
  }

  $(this).everyTime(7000, function() {
    if(slidesDirection == 1) {
      if(currentPosition >= numberOfSlides-1) {
        slidesDirection = 0;
        $('#leftControl').click();
      }
      else
        $('#rightControl').click();
    }
    else {
      if(currentPosition == 0) {
        slidesDirection = 1;
        $('#rightControl').click();   
      }
      else
        $('#leftControl').click();
    }    
  }, 4);
});