$(document).ready(function () {
  if (typeof(isFrontpage) != 'undefined') {
    slidingLayoutSemaphore = false;
    hasToMouseout = false;
    var _options = {
      stop:  '137px',
      start: $('#header').css('height'),
      logo: {
        stop: '122px',
        start: $('a.logo').css('height'),
      },
      duration: 500,
      easing: null
    };


    $('#logoMain').mouseover(function() {
      if (!slidingLayoutSemaphore) {
        slidingLayoutSemaphore = true;
        $('#header').animate({'height': _options.stop}, _options.duration, _options.easing);
        $('#bodyBg').animate({backgroundPosition: '0 ' + _options.stop + 'px'}, _options.duration, _options.easing, function () {
          hasToMouseout = true;
        });
        $('a.logo').css('height', _options.logo.stop);
      }
    });

    $('#logoMain').mouseout(function () {
      if (hasToMouseout) {
        slidingLayoutSemaphore = true;
        $('#header').animate({'height': _options.start}, _options.duration, _options.easing);
        $('#bodyBg').animate({backgroundPosition: '0 ' + _options.start + 'px'}, _options.duration, _options.easing, function () {
          $('a.logo').css('height', _options.logo.start);
          slidingLayoutSemaphore = false;
        });
      }
    });
  }
});