/*
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;
    $.paused = false;
    var options = $.extend($.fn.supersized.defaults, $.fn.supersized.options);
    
    $(window).bind("load", function(){
      $('#loading').hide();
      $('#supersize').fadeIn('fast');
      $('#content').show();
      if ($('#slideshow .activeslide').length == 0) $('#supersize a:first').addClass('activeslide');
      if (options.slide_captions == 1) $('#slidecaption').html($('#supersize .activeslide').find('img').attr('title'));
      if (options.navigation == 0) $('#navigation').hide();
      //Slideshow
      if (options.slideshow == 1){
        if (options.slide_counter == 1){ //Initiate slide counter if active
          $('#slidecounter .slidenumber').html(1);
            $('#slidecounter .totalslides').html($("#supersize > *").size());
          }
        slideshow_interval = setInterval("nextslide()", options.slide_interval);
        if (options.navigation == 1){ //Skip if no navigation
          $('#navigation a').click(function(){  
               $(this).blur();  
               return false;  
             });   
          //Slide Navigation
            $('#nextslide').click(function() {
              if($.paused) return false; if($.inAnimation) return false;
              clearInterval(slideshow_interval);
              nextslide();
              slideshow_interval = setInterval(nextslide, options.slide_interval);
              return false;
            });
            $('#prevslide').click(function() {
              if($.paused) return false; if($.inAnimation) return false;
                clearInterval(slideshow_interval);
                prevslide();
                slideshow_interval = setInterval(nextslide, options.slide_interval);
                return false;
            });
          $('#nextslide img').hover(function() {
            if($.paused == true) return false;
               $(this).attr("src", "images/forward.gif");
          }, function(){
            if($.paused == true) return false;
              $(this).attr("src", "images/forward_dull.gif");
          });
          $('#prevslide img').hover(function() {
            if($.paused == true) return false; 
              $(this).attr("src", "images/back.gif");
          }, function(){
            if($.paused == true) return false;
              $(this).attr("src", "images/back_dull.gif");
          });
          
            //Play/Pause Button
            $('#pauseplay').click(function() {
              if($.inAnimation) return false;
              var src = ($(this).find('img').attr("src") === "images/play.gif") ? "images/pause.gif" : "images/play.gif";
                if (src == "images/pause.gif"){
                  $(this).find('img').attr("src", "images/play.gif");
                  $.paused = false;
                  slideshow_interval = setInterval(nextslide, options.slide_interval);  
                }else{
                  $(this).find('img').attr("src", "images/pause.gif");
                  clearInterval(slideshow_interval);
                  $.paused = true;
                }
                $(this).find('img').attr("src", src);
              return false;
            });
            $('#pauseplay').mouseover(function() {
              var imagecheck = ($(this).find('img').attr("src") === "images/play_dull.gif");
              if (imagecheck){
                  $(this).find('img').attr("src", "images/play.gif"); 
                }else{
                  $(this).find('img').attr("src", "images/pause.gif");
                }
            });
            
            $('#pauseplay').mouseout(function() {
              var imagecheck = ($(this).find('img').attr("src") === "images/play.gif");
              if (imagecheck){
                  $(this).find('img').attr("src", "images/play_dull.gif"); 
                }else{
                  $(this).find('img').attr("src", "images/pause_dull.gif");
                }
                return false;
            });
        }
      }
    });
        
    $(document).ready(function() {
      $('#supersize').resizenow(); 
    });
    
    //Pause when hover on image
    $('#supersize > *').hover(function() {
         if (options.slideshow == 1 && options.pause_hover == 1){
           if(!($.paused) && options.navigation == 1){
             $('#pauseplay > img').attr("src", "images/pause.gif"); 
             clearInterval(slideshow_interval);
           }
         }
         original_title = $(this).find('img').attr("title");
         if($.inAnimation) return false; else $(this).find('img').attr("title","");
       }, function() {
      if (options.slideshow == 1 && options.pause_hover == 1){
        if(!($.paused) && options.navigation == 1){
          $('#pauseplay > img').attr("src", "images/pause_dull.gif");
          slideshow_interval = setInterval(nextslide, options.slide_interval);
        } 
      }
      $(this).find('img').attr("title", original_title);  
       });
    
    $(window).bind("resize", function(){
        $('#supersize').resizenow(); 
    });
    
    $('#supersize').hide();
    $('#content').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: 1,
      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');
    
    
    //Display slide counter
    if (options.slide_counter == 1){
      var slidecount = $('#slidecounter .slidenumber').html();
      currentslide.next().length ? slidecount++ : slidecount = 1;
        $('#slidecounter .slidenumber').html(slidecount);
    }
    
    $('.prevslide').removeClass('prevslide');
    prevslide.addClass('prevslide');
    
    //Captions require img in <a>
      if (options.slide_captions == 1) $('#slidecaption').html($(nextslide).find('img').attr('title'));
    
      nextslide.hide().addClass('activeslide')
        if (options.transition == 0){
          nextslide.show(); $.inAnimation = false;
        }
        if (options.transition == 1){
          nextslide.fadeIn(750, function(){$.inAnimation = false;});
        }
        if (options.transition == 2){
          nextslide.show("slide", { direction: "up" }, 'slow', function(){$.inAnimation = false;});
        }
        if (options.transition == 3){
          nextslide.show("slide", { direction: "right" }, 'slow', function(){$.inAnimation = false;});
        }
        if (options.transition == 4){
          nextslide.show("slide", { direction: "down" }, 'slow', function(){$.inAnimation = false;});
        }
        if (options.transition == 5){
          nextslide.show("slide", { direction: "left" }, 'slow', function(){$.inAnimation = false;});
        }
        
      $('#supersize').resizenow();//Fix for resize mid-transition
      
  }
  
  //Slideshow Previous Slide
  function prevslide() {
    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:first');
      
      var nextslide =  currentslide.prev().length ? currentslide.prev() : $('#supersize a:last');
      var prevslide =  nextslide.next().length ? nextslide.next() : $('#supersize a:first');
    
    //Display slide counter
    if (options.slide_counter == 1){
      var slidecount = $('#slidecounter .slidenumber').html();
      currentslide.prev().length ? slidecount-- : slidecount = $("#supersize > *").size();
        $('#slidecounter .slidenumber').html(slidecount);
    }
    
    $('.prevslide').removeClass('prevslide');
    prevslide.addClass('prevslide');
    
    //Captions require img in <a>
      if (options.slide_captions == 1) $('#slidecaption').html($(nextslide).find('img').attr('title'));
    
      nextslide.hide().addClass('activeslide')
        if (options.transition == 0){
          nextslide.show(); $.inAnimation = false;
        }
        if (options.transition == 1){
          nextslide.fadeIn(750, function(){$.inAnimation = false;});
        }
        if (options.transition == 2){
          nextslide.show("slide", { direction: "down" }, 'slow', function(){$.inAnimation = false;});
        }
        if (options.transition == 3){
          nextslide.show("slide", { direction: "left" }, 'slow', function(){$.inAnimation = false;});
        }
        if (options.transition == 4){
          nextslide.show("slide", { direction: "up" }, 'slow', function(){$.inAnimation = false;});
        }
        if (options.transition == 5){
          nextslide.show("slide", { direction: "right" }, 'slow', function(){$.inAnimation = false;});
        }
        
        $('#supersize').resizenow();//Fix for resize mid-transition
  }