jQuery(document).ready(function(){
  
  var currentPosition = 0;
  var slideWidth = 660;
   var slides = jQuery('.slide');
  var numberOfSlides = slides.length;
   // Remove scrollbar in JS
 jQuery('#slidesContainer').css('overflow-x', '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
  jQuery('#slideInner').css('width', slideWidth * numberOfSlides);
  // Insert controls in the DOM
  jQuery('#slideshow')
    .prepend('<span class="control" id="leftControl">Clicking moves left</span>')
    .append('<span class="control" id="rightControl">Clicking moves right</span>');
 
 

  // Create event listeners for .controls clicks
 jQuery('.control')
    .bind('click', function(){
    // Determine new position
	currentPosition = (jQuery(this).attr('id')=='rightControl') ? currentPosition+1 : currentPosition-1;
	
	if(currentPosition<numberOfSlides && currentPosition>=0){
	    
    // Move slideInner using margin-left
    jQuery('#slideInner').animate({
      'marginLeft' : slideWidth*(-currentPosition)
    });
	}
	
  });
  
  
  
});