$(document).ready(function(){
  var currentPosition = 0;
  var slideWidth = 244;
  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"></span>')
    .append('<span class="control" id="rightControl"></span>');

  // Hide left arrow control on first load
  manageControls(currentPosition);
  ukazPopisek(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);
    
    ukazPopisek(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() }
  }
  
  function ukazPopisek(position) {
    if (position==0) {$('.nalepka0').show() } else { $('.nalepka0').hide()}
    if (position==1) {$('.nalepka1').show() } else { $('.nalepka1').hide()}
    if (position==2) {$('.nalepka2').show() } else { $('.nalepka2').hide()}
    if (position==3) {$('.nalepka3').show() } else { $('.nalepka3').hide()}
    if (position==4) {$('.nalepka4').show() } else { $('.nalepka4').hide()}
    if (position==5) {$('.nalepka5').show() } else { $('.nalepka5').hide()}
    if (position==6) {$('.nalepka6').show() } else { $('.nalepka6').hide()}
    if (position==7) {$('.nalepka7').show() } else { $('.nalepka7').hide()}
    if (position==8) {$('.nalepka8').show() } else { $('.nalepka8').hide()}
    if (position==9) {$('.nalepka9').show() } else { $('.nalepka9').hide()}
    if (position==10) {$('.nalepka10').show() } else { $('.nalepka10').hide()}
    if (position==11) {$('.nalepka11').show() } else { $('.nalepka11').hide()}
    if (position==12) {$('.nalepka12').show() } else { $('.nalepka12').hide()}
    if (position==13) {$('.nalepka13').show() } else { $('.nalepka13').hide()}
    if (position==14) {$('.nalepka14').show() } else { $('.nalepka14').hide()}
  }	
});