$(function(){
	var currentPosition = 0;
	var slideWidth = 368;
	var slides = $('.slide');
	var numberOfSlides = slides.length;
	
	// Wrap all .slides with #slideInner div
	slides.wrapAll('<div id="slideInner"></div>').css({'float' : 'left','width' : slideWidth});
	// Set #slideInner width equal to total width of all slides
	$('#slideInner').css('width', slideWidth * numberOfSlides);
	
	// Insert left and right arrow controls in the DOM
	$('#slideshow').append('<span class="control" id="leftControl">Previous</span>').append('<span class="control" id="rightControl">Next</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() }
	}
});