/*
Supersized - Fullscreen Slideshow jQuery Plugin
By Sam Dunn (www.buildinternet.com // www.onemightyroar.com)
Version: supersized.2.0.js // Relase Date: 5/7/09
Website: www.buildinternet.com/project/supersized
Thanks to Aen for preloading, fade effect, & vertical centering
*/

(function($){

  //Resize image on ready or resize
  $.fn.supersized = function() {
    $.inAnimation = false;
    var options = $.extend($.fn.supersized.defaults, $.fn.supersized.options);
    
    $(window).bind("load", function(){
      $('#loading').hide();
      $('#supersize').fadeIn('fast');
      if ($('#slideshow .activeslide').length == 0) $('#supersize a:first').addClass('activeslide');

      //Slideshow
      if (options.slideshow == 1){

        slideshow_interval = setInterval("nextslide()", options.slide_interval);
      }
    });
        
    $(document).ready(function() {
      $('#supersize').resizenow(); 
    });
    
    $(window).bind("resize", function(){
        $('#supersize').resizenow(); 
    });
    
    $('#supersize').hide();
  };
  
  //Adjust image size
  $.fn.resizenow = function() {
    var options = $.extend($.fn.supersized.defaults, $.fn.supersized.options);
      return this.each(function() {
        
      //Define image ratio
      var ratio = options.startheight/options.startwidth;
      
      //Gather browser and current image size
      var imagewidth = $(this).width();
      var imageheight = $(this).height();
      var browserwidth = $(window).width();
      var browserheight = $(window).height();
      var offset;

      //Resize image to proper ratio
      if ((browserheight/browserwidth) > ratio){
          $(this).height(browserheight);
          $(this).width(browserheight / ratio);
          $(this).children().height(browserheight);
          $(this).children().width(browserheight / ratio);
      } else {
          $(this).width(browserwidth);
          $(this).height(browserwidth * ratio);
          $(this).children().width(browserwidth);
          $(this).children().height(browserwidth * ratio);
      }
      if (options.vertical_center == 1){
        $(this).children().css('left', (browserwidth - $(this).width())/2);
        $(this).children().css('top', (browserheight - $(this).height())/2);
      }
      return false;
    });
  };
  
  $.fn.supersized.defaults = { 
      startwidth: 4,  
      startheight: 3,
      vertical_center: 1,
      slideshow: 1,
      navigation:0,
      transition: 1, //0-None, 1-Fade, 2-slide top, 3-slide right, 4-slide bottom, 5-slide left
      pause_hover: 0,
      slide_counter: 1,
      slide_captions: 1,
      slide_interval: 5000
  };
  
})(jQuery);

  //Slideshow Next Slide
  function nextslide() {
    if($.inAnimation) return false;
    else $.inAnimation = true;
      var options = $.extend($.fn.supersized.defaults, $.fn.supersized.options);
      var currentslide = $('#supersize .activeslide');
      currentslide.removeClass('activeslide');
    
      if ( currentslide.length == 0 ) currentslide = $('#supersize a:last');
      
      var nextslide =  currentslide.next().length ? currentslide.next() : $('#supersize a:first');
      var prevslide =  nextslide.prev().length ? nextslide.prev() : $('#supersize a:last');
    
    $('.prevslide').removeClass('prevslide');
    prevslide.addClass('prevslide');
    
      nextslide.hide().addClass('activeslide')
        if (options.transition == 0){
          nextslide.show(); $.inAnimation = false;
        }
        if (options.transition == 1){
        nextslide.show();

         //Display slide counter
        if (options.slide_counter == 1){
          var slidecount = $('#slidecounter .slidenumber').html();
          currentslide.next().length ? slidecount++ : slidecount = 1;
          $('#slidecounter .slidenumber').html(slidecount);
        }
        $.inAnimation = false;

        
        
        }
        
      $('#supersize').resizenow();//Fix for resize mid-transition
      
  }