$(document).ready(function() {
	
	/* ------ Slideshow ------ */
	
	var currentPosition = 0;
	var slideWidth = 910;
	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() }
	}
	
	/* ------ Slideshow ------ */

});