$(function(){
	//Get our elements for faster access and set overlay width
	var div = $('div.sc_menu'),
		ul = $('ul.sc_menu'),
		ulPadding = 15;
	
	//Get menu width
	var divWidth = div.width();

	//Remove scrollbars	
	div.css({overflow: 'hidden'});
	
	//Find last image container
	var lastLi = ul.find('li:last-child');
	
	//When user move mouse over menu
	div.mousemove(function(e){
		//As images are loaded ul width increases,
		//so we recalculate it each time
		var ulWidth = lastLi[0].offsetLeft + lastLi.outerWidth() + ulPadding;	
		var left = (e.pageX - div.offset().left) * (ulWidth-divWidth) / divWidth;
		div.scrollLeft(left);
	});
});

$(document).ready(function(){
  var currentPosition = 0;
  var slideWidth = 850;
  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() }
  }	
});