//var previous = 0;
//var inntimer = '';
var previous = new Array();
var inntimer = new Array();
(function($) {

  $.fn.innerfade = function(options, strNextEl,strPagineringEl,nrEl) {
    return this.each(function() {
      $.innerfade(this, options,strNextEl,strPagineringEl,nrEl);
    });
  };

  $.innerfade = function(container, options, strNextEl,strPagineringEl,nrEl) {
    var settings = {
      'animationtype': 'fade',
      'speed': 'normal',
      'type': 'sequence',
      'timeout': 2000,
      'containerheight': 'auto',
      'runningclass': 'innerfade',
      'children': null,
      'play':true
    };
    previous[nrEl] = 0;
    inntimer[nrEl] = 0;
    
    if (options)
      $.extend(settings, options);
    if (settings.children === null)
      var elements = $(container).children();
    else
      var elements = $(container).children(settings.children);

    $(container).hover(function() {settings.play = false;},function(){settings.play = true;});

    if (elements.length > 1) {

      $(container).addClass(settings.runningclass);
      var strControls = "<ul>";
      for (var i = 0; i < elements.length; i++) {
        $(elements[i]).css('z-index', String(elements.length - i)).hide();
        strControls += "<li id='" + nrEl + i + "'></li>";
      };
      $("#" + strPagineringEl).append(strControls + "</ul>")

      for (var i = 0; i < elements.length; i++) {
          $('#' + nrEl + i).hover(function() {
          
          var originalspeed = settings.speed;
          settings.speed = 'fast';
          $.innerfade.ganaar(elements, settings, this, strNextEl,strPagineringEl,nrEl);
          settings.speed = originalspeed;
          settings.play = false;
          },function(){settings.play = true;});

        };


      //custom begin
      if(strNextEl)
      {
        //$("#" + strNextEl).append("<div title='Vorige slide' class='carousel_prev'></div><div class='carousel_next' title='Volgende slide'></div>");
        //$("#" + strNextEl + " .carousel_prev").bind('click', function() {
        //  $.innerfade.ganaar(elements, settings,  $("#" + strNextEl + " .carousel_prev"),strNextEl,strPagineringEl,nrEl);
        //  return false;
        //});
      }
      //custom einde
      $('#' + nrEl + '0').addClass("first");
      $('#' + nrEl + '0').addClass("active");
      $('ul[id^=' + strPagineringEl + '] li:last').addClass("last");

      if (settings.type == "sequence") {
        inntimer[nrEl] = setTimeout(function() {
          $.innerfade.next(elements, settings, 1, 0, true, strNextEl,strPagineringEl,nrEl);
        }, settings.timeout);
        $(elements[0]).show();
      } else if (settings.type == "random") {
        var last = Math.floor(Math.random() * (elements.length));
        inntimer[nrEl] = setTimeout(function() {
          do {
            current = Math.floor(Math.random() * (elements.length));
          } while (last == current);
          $.innerfade.next(elements, settings, current, last,true, strNextEl,strPagineringEl,nrEl);
        }, settings.timeout);
        $(elements[last]).show();
      } else if (settings.type == 'random_start') {
        settings.type = 'sequence';
        var current = Math.floor(Math.random() * (elements.length));
        inntimer[nrEl] = setTimeout(function() {
          $.innerfade.next(elements, settings, (current + 1) % elements.length, current, true, strNextEl,strPagineringEl,nrEl);
        }, settings.timeout);
        $(elements[current]).show();
      } else {
        alert('Innerfade-Type must either be \'sequence\', \'random\' or \'random_start\'');
      }
    }
  };

  $.innerfade.ganaar= function(elements, settings, el, strNextEl,strPagineringEl,nrEl) {
    i = parseInt(el.id.replace(nrEl, ""));
    current = i;

    last = previous[nrEl];
    if (current != last) {
      clearTimeout(inntimer[nrEl]);
      $.innerfade.next(elements, settings, current, last, true, strNextEl,strPagineringEl,nrEl);
    }
  }

  $.innerfade.next = function(elements, settings, current, last, faster, strNextEl,strPagineringEl,nrEl) {
      if(settings.play)
      {
        $('#' + strPagineringEl + " li").removeClass("active");
        $('#' + nrEl + current).addClass("active");

      if (settings.animationtype == 'slide') {
        $(elements[last]).slideUp(settings.speed);
        $(elements[current]).slideDown(settings.speed);
      } else if (settings.animationtype == 'fade') {
        $(elements[last]).fadeOut(settings.speed);
        $(elements[current]).fadeIn(settings.speed, function() {
          removeFilter($(this)[0]);
        });
      } else
        alert('Innerfade-animationtype must either be \'slide\' or \'fade\'');
      if (settings.type == "sequence") {
        if ((current + 1) < elements.length) {
          current = current + 1;
          last = current - 1;
        } else {
          current = 0;
          last = elements.length - 1;
        }
        //custom
        if(strNextEl)
        {
        $('#' + strNextEl).unbind('click');
        $('#' + strNextEl).bind('click', function() {
          $.innerfade.ganaar(elements, settings, document.getElementById(nrEl + current),strNextEl,strPagineringEl,nrEl);
          //return false;
        });
        }
        //einde custom
      } else if (settings.type == "random") {
        last = current;
        while (current == last)
          current = Math.floor(Math.random() * elements.length);
      } else
        alert('Innerfade-Type must either be \'sequence\', \'random\' or \'random_start\'');
      previous[nrEl] = last;
    }
    inntimer[nrEl] = setTimeout((function() {
      $.innerfade.next(elements, settings, current, last, false, strNextEl,strPagineringEl,nrEl);
    }), settings.timeout);
  };

})(jQuery);

// **** remove Opacity-Filter in ie ****
function removeFilter(element) {
  try
  {
	if(element.style.removeAttribute){
		element.style.removeAttribute('filter');
	}
	}catch(e){}
}