var manualTransition = false;
var transitioning = false;

function initHeaderSlider(startSlide) {
  $('#slider').nivoSlider({
    effect: 'fade',
    animSpeed:700, // Slide transition speed
          pauseTime:6500, // How long each slide will show
    directionNavHide: false,
    startSlide: startSlide,
    beforeChange: function() {
      transitioning = true;
    },
    afterChange: function() {
      transitioning = false;
      if(manualTransition) {
        $('a.referenzen-details').trigger('click');
        manualTransition = false;
      }
    }
  });
}

$(document).ready(function() {
  initHeaderSlider(0);
});