$(document).ready(function() {
  var thumblist, thumbs;
  thumblist = $(".thumblist");
  thumblist.ulWidth = $("img", thumblist).length * 199;
  $("ul", thumblist).css({width: thumblist.ulWidth + "px"/*,left: ((thumblist.ulWidth - 398) * -1) + ""*/}).toggleClass("hidden");

  $(".back", thumblist).click(function() {return moveThumblistLeft(thumblist)});
  $(".go", thumblist).click(function() {return moveThumblistRight(thumblist)});

  $('ul a', thumblist).lightBox({fixedNavigation:true});
})

$(document).load(function() {
  // vertikalne vycentrovat thumbnaily
  thumbs = $("ul img", thumblist)
  for(var i = 0; i < thumbs.length; i++) {
    if(thumbs[i].height < 120) {
      thumbs[i].style.marginTop = Math.round((120 - thumbs[i].height) / 2) + "px";
    }
  }
});


/**
 * Posoupnout prouzek s thumbnailama o jeden do prava
 * @param  thumblist jQuery
 * @return false
 */
function moveThumblistLeft(thumblist) {
  var newLeft;
  newLeft = $("ul", thumblist).position().left + 199;

  if(newLeft <= 0) {
    $("ul", thumblist).animate({left: newLeft + "px"});
  }

  return false;
}


/**
 * Posoupnout prouzek s thumbnailama o jeden do leva
 * @param  thumblist jQuery
 * @return false
 */
function moveThumblistRight(thumblist) {
  var newLeft;
  newLeft = $("ul", thumblist).position().left - 199;

  if(newLeft * -1 <= thumblist.ulWidth - 398)
  $("ul", thumblist).animate({left: newLeft + "px"});

  return false;
}