function ImageResizer(){

    var public = {},
        container,
        img,
        init,
        determineImageSize;
    
    init = function() {
      container = {
        el: $('#image')
      }
      
      container.el.css({
        bottom: $("footer").height() + 14
      });

      public.evaluateImage();
      $(window).resize(public.resize);
    };

    determineImageSize = function(height) {
      var resize;
      if(height <= 550){
        resize = "/resized_550";
      } else if(height > 550 && height <= 850){
        resize = "/resized_850";
      } else {
        resize = "";
      }
      if(resize != globals.RESIZE_PATH){
        // reset resize path
        globals.RESIZE_PATH = resize;
 
        // get current state and file path
        var currentState = window.stateController.parseStateFromPath(window.stateController.activeImage);
        var currentPath =  window.stateController.parsePathFromState(currentState);
        
        // preload new image, and when done replace it seamlessly
        var newImg = new Image();
        newImg.onload = function() {
          globals.mainImage.attr("src", currentPath);
          window.stateController.activeImage = currentPath;
        };        
        newImg.src = currentPath;
      }      
    };

    public.evaluateImage = function() {
      img = {
        el: globals.mainImage
      };
      
      // load image to get the dimensions and ratio
      // and then trigger a resize event to adjust
      var newImg = new Image();
      newImg.onload = function() {
          img.width = this.width;
          img.height = this.height;
          img.ratio = img.width / img.height;
          $(window).trigger('resize');
      };
      
      newImg.src = img.el.attr("src");
    };

    public.resize = function() {
      // get the dimensions and ratio of the container
      container.width = container.el.width();
      container.height = container.el.height();
      container.ratio = container.width / container.height;

      var scaledImg = {}
      
      // set the dimensions of the image scaled to the container
      
      // image is wider than window
      if(container.ratio < img.ratio){
        scaledImg.width = Math.round(container.width);
        scaledImg.height = Math.round(container.width / img.ratio); 
      
      // image is taller than window
      } else {
        scaledImg.width = Math.round((container.height) * img.ratio);
        scaledImg.height = Math.round(container.height);
      }

      // for browsers that don't support bicubic interpolation for downscaled images (IE9, FF3.6)
      if(globals.doesntSupportBicubicDownscale){
        determineImageSize(scaledImg.height);
      }

      // figure out the scale multiplier so we can adjust the bottom clip
      var multiplier = scaledImg.height / img.height;      
      var bottomClip = Math.round(scaledImg.height - (scaledImg.height * globals.COPYRIGHT_PERCENTAGE));

      // image is taller than window
      if(container.ratio >= img.ratio){

        // once we clip the copyright from the bottom, we have more room to scale the image
        // up, this is the multiplier for how much we can now scale it by
        var clipAdjustmentMultiplier = scaledImg.height / bottomClip;

        // make sure the content adjustment multiplier doesn't make the image
        // wider than the container, if it does, modify it accordingly
        if(Math.round(scaledImg.width * clipAdjustmentMultiplier) > container.width){
         clipAdjustmentMultiplier = container.width / scaledImg.width;
        }
        
        scaledImg.width = Math.round(scaledImg.width * clipAdjustmentMultiplier);
        scaledImg.height = Math.round(scaledImg.height * clipAdjustmentMultiplier);
        
        // now that we've scaled it up a bit, adjust the bottom clip to match
        bottomClip *= clipAdjustmentMultiplier;
      }

      // apply all the CSS settings
      img.el.css({
        clip: "rect(0px, 100000px,"+bottomClip +"px ,0px)",
        height: scaledImg.height + "px",
        width: scaledImg.width + "px",
        top: (container.height - bottomClip)/2 + "px",
        left: (container.width - scaledImg.width)/2 + "px"
      });
      
      window.mainImage.imageReplaced();
    };
  
    init();
    return public;
};



function ThumbnailNavigation() {

  var public = {},
      init, 
      thumbnailClick, 
      thumbnailLinks,
      activeThumbnail,
      previousLink,
      nextLink,
      nextPrevClick;

  init = function() {
    thumbnailLinks = globals.thumbnailLinks;
    activeThumbnail = $("footer a.active");
    previousLink =  $("footer li.previous a");
    nextLink =  $("footer li.next a");

    // hide previous link if first thumbnail is active
    if(thumbnailLinks.index(activeThumbnail) === 0){
      previousLink.hide();
    }
    
    // hide next link if last thumbnail is active
    if(thumbnailLinks.index(activeThumbnail) === thumbnailLinks.length - 1){
      nextLink.hide();
    }
    
    thumbnailLinks.each(function(i, el){
      // attach click event listener
      $(el).click(thumbnailClick);
    });
    
    previousLink.click(nextPrevClick);
    nextLink.click(nextPrevClick);
  };
  
  nextPrevClick = function(event) {
    event.preventDefault();
    var el = $(event.currentTarget);
        
    var activeIndex = thumbnailLinks.index(activeThumbnail);

    if(el.hasClass("previous") && activeIndex > 0) {
      $(thumbnailLinks.get(activeIndex - 1)).click();
    
    } else if(el.hasClass("next") && activeIndex < thumbnailLinks.length - 1) {
      $(thumbnailLinks.get(activeIndex + 1)).click();
    }
  };
  
  thumbnailClick = function(event) {
    event.preventDefault();
    var el = event.currentTarget;    
    window.stateController.pushState(el.href);
  };

  public.showPrevious = function() {
    previousLink.fadeIn(200);
  };

  public.hidePrevious = function() {
    previousLink.fadeOut(200);
  };

  public.showNext = function() {
    nextLink.fadeIn(200);
  };

  public.hideNext = function() {
    nextLink.fadeOut(200);
  };
  
  public.activateThumbnail = function(thumbnailPath) {
    var thumbnailLink = thumbnailLinks.filter('[href="'+thumbnailPath+'"]');

    // enable or disable next/prev links
    thumbnailLinks.index(thumbnailLink) > 0 ? this.showPrevious() : this.hidePrevious();
    thumbnailLinks.index(thumbnailLink) < thumbnailLinks.length - 1 ? this.showNext() : this.hideNext();
    
    activeThumbnail.removeClass("active");
    thumbnailLink.addClass("active");
    activeThumbnail = thumbnailLink;
    return activeThumbnail;
  };
    
  init();
  return public;
};



function ImageReplacer() {

  var public = {
        shouldPushState: true
      },
      init, 
      mainImage,
      loadingIndicator;

  init = function() {
    mainImage = globals.mainImage;
    public.imagePath = mainImage.attr("src");
    loadingIndicator = $("#image .loading_indicator");
  };
  
  public.hideImage = function(callback) {
    mainImage.fadeOut(200, callback);
  };
  
  public.showImage = function(callback) {
    mainImage.fadeIn(200, callback);
  };
  
  public.showLoadingIndicator = function() {
    loadingIndicator.fadeIn(450);
  };
  
  public.hideLoadingIndicator = function() {
    loadingIndicator.fadeOut(200);
  };
  
  public.imageReplaced = function() {
    public.showImage(function(){
      public.hideLoadingIndicator();
      if(this.shouldPushState){
        window.stateController.pushState(this.imagePath);
      }
    });
  };
  
  public.replaceImage = function(imagePath, shouldPushState) {
    this.shouldPushState = shouldPushState;
    this.imagePath = imagePath;
    public.hideImage(function(){
      mainImage.attr("src", public.imagePath);
      public.showLoadingIndicator();
      window.imageResizer.evaluateImage();
    });
    return public.imagePath;
  };
  
  init();
  return public;  
};



function StateController() {

  var public = {
        activeImage: globals.mainImage,
        activeThumbnail: $("footer a.active")
      },
      init, 
      stateChanged,
      SECTION,
      ASSETS_FOLDER = "/assets";

  init = function() {
    // determine section
    SECTION = document.body.id;
    SECTION_IS_PORTFOLIO = SECTION == "portfolio" || SECTION == "sketches";
    // set state on load

    var loadState = History.getState().hash;
    var stateIsInvalid = 
      loadState == "/" || 
      loadState == "./" || 
      loadState == "/"+SECTION+"/" ||
      loadState == "/"+SECTION;

    // for portfolio sections, push the state to be the latest image, if there is no state set
    if(stateIsInvalid && SECTION_IS_PORTFOLIO){
      // set the state to the section + filename (without extension)
      public.replaceState(globals.mainImage.attr("src"));
    } else {
      stateChanged();
    }

    // attach event listeners for the global statechange event and the custom pushstate event
    $(window).bind("statechange", stateChanged);

    // start preloader
    setTimeout(function(){
      window.preloader.startPreloading();
      }, 500);    
  };

  stateChanged = function() {
    if(SECTION_IS_PORTFOLIO){
      window.preloader.stopPreloading();
      var origin = window.location.protocol + "//" + window.location.host;
      var state = History.getState();
      state = state.cleanUrl.replace(origin, "");
    
      // on state change trigger the image replacement
      

      public.activeImage = window.mainImage.replaceImage(public.parsePathFromState(state), false);
      public.activeThumbnail = window.thumbnailNav.activateThumbnail(state);

      // start preloading after 1 second
      setTimeout(function(){
        window.preloader.startPreloading();
      }, 500);
    }
  };

  public.parsePathFromState = function(state){
    var section = state.split("/")[1];
    var file = state.split("/")[2];
    return ASSETS_FOLDER + "/"+ section + globals.RESIZE_PATH + "/" + file + ".jpg";
  };
  
  public.parseStateFromPath = function(path){
    var splitPath = path.split("/");
    if(splitPath.length > 4){
      path = "/" + splitPath[1] + "/" + splitPath[2] + "/" + splitPath[4];
    } else {
      path = "/" + splitPath[1] + "/" + splitPath[2] + "/" + splitPath[3];
    }
    return path.slice(ASSETS_FOLDER.length, -4)
  };

  public.pushState = function(state) {
    // if state contains .jpg, it must be a file path, so convert it
    if(/\.jpg/.test(state)){
      state = this.parseStateFromPath(state);
    }
    History.pushState(null, null, state);
  };
  
  public.replaceState = function(state) {
    // if state contains a period, it must be a file path, so convert it
    if(/\./.test(state)){
      state = this.parseStateFromPath(state);
    }
    History.replaceState(null, null, state);
  };  
  
  init();
  return public;
}



function ImagePreloader(){

  var public = {},
      init,
      images = [],
      preloadOrder = [],
      shouldPreload = false,
      determinePreloadOrder;

  init = function() {
    
  };

  public.startPreloading = function() {
    if(preloadOrder.length == 0){
      determinePreloadOrder();
    }
    shouldPreload = true;
    public.preloadImage(images[preloadOrder[0]]);
  };
  
  public.stopPreloading = function(){
    shouldPreload = false;
  };
  
  determinePreloadOrder = function() {
    var thumbnailLinks = globals.thumbnailLinks;
    
    thumbnailLinks.each(function(i, el){
      images[i] = window.stateController.parsePathFromState($(el).attr("href"));
    });
    
    var activeImage = window.stateController.activeImage
    var startPoint = images.indexOf(activeImage);
    var after = [];
    var before = [];
    for(var i=0, direction = 1; i<images.length; i++){
      if(startPoint > images.length - 1){
        before.unshift(startPoint - images.length);
      } else {
        after[i] = startPoint;  
      }
      startPoint++
    }
    
    // combine the before and after arrays in alternating order
    var i = 0;
    var m = 0;
    while (i < after.length || i < before.length) {
      if (i < after.length)
          preloadOrder[m++] = after[i];
      if (i < before.length)
          preloadOrder[m++] = before[i];
      i++;
    }
    
    // remove first item, as it's already loaded
    preloadOrder.shift();
  };
  
  public.preloadImage = function(path) {
    if(!shouldPreload){
      return;
    }
    
    $("<img/>").attr("src", path).load(function() {
      // remove first element
      preloadOrder.shift();
      if(preloadOrder.length > 0){
        public.preloadImage(images[preloadOrder[0]]);
      }
    });
          
  };
  
  init(); 
  return public;
}



function EmailLinker(){

  var public = {},
      init;

  init = function() {
    // find email links
    var emailContainer = $(".email");
    var emailLink = $(".email .link_begin");
    var emailAt = $(".email .link_begin .at");
    var emailDot = $(".email .link_begin .dot");
    
    // linkify them
    emailContainer.show();
    emailLink.wrap("<a href='mailto:karen@karenpetrasko.com'>");
    emailAt.html("@");
    emailDot.html(".");
  };
  
  public.run = function(){
    init();
  }
  
  init();
  return public;
};

































// History.js - https://github.com/balupton/history.js
window.JSON||(window.JSON={}),function(){function f(a){return a<10?"0"+a:a}function quote(a){return escapable.lastIndex=0,escapable.test(a)?'"'+a.replace(escapable,function(a){var b=meta[a];return typeof b=="string"?b:"\\u"+("0000"+a.charCodeAt(0).toString(16)).slice(-4)})+'"':'"'+a+'"'}function str(a,b){var c,d,e,f,g=gap,h,i=b[a];i&&typeof i=="object"&&typeof i.toJSON=="function"&&(i=i.toJSON(a)),typeof rep=="function"&&(i=rep.call(b,a,i));switch(typeof i){case"string":return quote(i);case"number":return isFinite(i)?String(i):"null";case"boolean":case"null":return String(i);case"object":if(!i)return"null";gap+=indent,h=[];if(Object.prototype.toString.apply(i)==="[object Array]"){f=i.length;for(c=0;c<f;c+=1)h[c]=str(c,i)||"null";return e=h.length===0?"[]":gap?"[\n"+gap+h.join(",\n"+gap)+"\n"+g+"]":"["+h.join(",")+"]",gap=g,e}if(rep&&typeof rep=="object"){f=rep.length;for(c=0;c<f;c+=1)d=rep[c],typeof d=="string"&&(e=str(d,i),e&&h.push(quote(d)+(gap?": ":":")+e))}else for(d in i)Object.hasOwnProperty.call(i,d)&&(e=str(d,i),e&&h.push(quote(d)+(gap?": ":":")+e));return e=h.length===0?"{}":gap?"{\n"+gap+h.join(",\n"+gap)+"\n"+g+"}":"{"+h.join(",")+"}",gap=g,e}}"use strict",typeof Date.prototype.toJSON!="function"&&(Date.prototype.toJSON=function(a){return isFinite(this.valueOf())?this.getUTCFullYear()+"-"+f(this.getUTCMonth()+1)+"-"+f(this.getUTCDate())+"T"+f(this.getUTCHours())+":"+f(this.getUTCMinutes())+":"+f(this.getUTCSeconds())+"Z":null},String.prototype.toJSON=Number.prototype.toJSON=Boolean.prototype.toJSON=function(a){return this.valueOf()});var JSON=window.JSON,cx=/[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,escapable=/[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,gap,indent,meta={"\b":"\\b","\t":"\\t","\n":"\\n","\f":"\\f","\r":"\\r",'"':'\\"',"\\":"\\\\"},rep;typeof JSON.stringify!="function"&&(JSON.stringify=function(a,b,c){var d;gap="",indent="";if(typeof c=="number")for(d=0;d<c;d+=1)indent+=" ";else typeof c=="string"&&(indent=c);rep=b;if(!b||typeof b=="function"||typeof b=="object"&&typeof b.length=="number")return str("",{"":a});throw new Error("JSON.stringify")}),typeof JSON.parse!="function"&&(JSON.parse=function(text,reviver){function walk(a,b){var c,d,e=a[b];if(e&&typeof e=="object")for(c in e)Object.hasOwnProperty.call(e,c)&&(d=walk(e,c),d!==undefined?e[c]=d:delete e[c]);return reviver.call(a,b,e)}var j;text=String(text),cx.lastIndex=0,cx.test(text)&&(text=text.replace(cx,function(a){return"\\u"+("0000"+a.charCodeAt(0).toString(16)).slice(-4)}));if(/^[\],:{}\s]*$/.test(text.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g,"@").replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g,"]").replace(/(?:^|:|,)(?:\s*\[)+/g,"")))return j=eval("("+text+")"),typeof reviver=="function"?walk({"":j},""):j;throw new SyntaxError("JSON.parse")})}(),function(a,b){"use strict";var c=a.History=a.History||{},d=a.jQuery;if(typeof c.Adapter!="undefined")throw new Error("History.js Adapter has already been loaded...");c.Adapter={bind:function(a,b,c){d(a).bind(b,c)},trigger:function(a,b,c){d(a).trigger(b,c)},extractEventData:function(a,c,d){var e=c&&c.originalEvent&&c.originalEvent[a]||d&&d[a]||b;return e},onDomLoad:function(a){d(a)}},typeof c.init!="undefined"&&c.init()}(window),function(a,b){"use strict";var c=a.document,d=a.setTimeout||d,e=a.clearTimeout||e,f=a.setInterval||f,g=a.History=a.History||{};if(typeof g.initHtml4!="undefined")throw new Error("History.js HTML4 Support has already been loaded...");g.initHtml4=function(){if(typeof g.initHtml4.initialized!="undefined")return!1;g.initHtml4.initialized=!0,g.enabled=!0,g.savedHashes=[],g.isLastHash=function(a){var b=g.getHashByIndex(),c;return c=a===b,c},g.saveHash=function(a){return g.isLastHash(a)?!1:(g.savedHashes.push(a),!0)},g.getHashByIndex=function(a){var b=null;return typeof a=="undefined"?b=g.savedHashes[g.savedHashes.length-1]:a<0?b=g.savedHashes[g.savedHashes.length+a]:b=g.savedHashes[a],b},g.discardedHashes={},g.discardedStates={},g.discardState=function(a,b,c){var d=g.getHashByState(a),e;return e={discardedState:a,backState:c,forwardState:b},g.discardedStates[d]=e,!0},g.discardHash=function(a,b,c){var d={discardedHash:a,backState:c,forwardState:b};return g.discardedHashes[a]=d,!0},g.discardedState=function(a){var b=g.getHashByState(a),c;return c=g.discardedStates[b]||!1,c},g.discardedHash=function(a){var b=g.discardedHashes[a]||!1;return b},g.recycleState=function(a){var b=g.getHashByState(a);return g.discardedState(a)&&delete g.discardedStates[b],!0},g.emulated.hashChange&&(g.hashChangeInit=function(){g.checkerFunction=null;var b="",d,e,h,i;return g.isInternetExplorer()?(d="historyjs-iframe",e=c.createElement("iframe"),e.setAttribute("id",d),e.style.display="none",c.body.appendChild(e),e.contentWindow.document.open(),e.contentWindow.document.close(),h="",i=!1,g.checkerFunction=function(){if(i)return!1;i=!0;var c=g.getHash()||"",d=g.unescapeHash(e.contentWindow.document.location.hash)||"";return c!==b?(b=c,d!==c&&(h=d=c,e.contentWindow.document.open(),e.contentWindow.document.close(),e.contentWindow.document.location.hash=g.escapeHash(c)),g.Adapter.trigger(a,"hashchange")):d!==h&&(h=d,g.setHash(d,!1)),i=!1,!0}):g.checkerFunction=function(){var c=g.getHash();return c!==b&&(b=c,g.Adapter.trigger(a,"hashchange")),!0},g.intervalList.push(f(g.checkerFunction,g.options.hashChangeInterval)),!0},g.Adapter.onDomLoad(g.hashChangeInit)),g.emulated.pushState&&(g.onHashChange=function(b){var d=b&&b.newURL||c.location.href,e=g.getHashByUrl(d),f=null,h=null,i=null,j;return g.isLastHash(e)?(g.busy(!1),!1):(g.doubleCheckComplete(),g.saveHash(e),e&&g.isTraditionalAnchor(e)?(g.Adapter.trigger(a,"anchorchange"),g.busy(!1),!1):(f=g.extractState(g.getFullUrl(e||c.location.href,!1),!0),g.isLastSavedState(f)?(g.busy(!1),!1):(h=g.getHashByState(f),j=g.discardedState(f),j?(g.getHashByIndex(-2)===g.getHashByState(j.forwardState)?g.back(!1):g.forward(!1),!1):(g.pushState(f.data,f.title,f.url,!1),!0))))},g.Adapter.bind(a,"hashchange",g.onHashChange),g.pushState=function(b,d,e,f){if(g.getHashByUrl(e))throw new Error("History.js does not support states with fragement-identifiers (hashes/anchors).");if(f!==!1&&g.busy())return g.pushQueue({scope:g,callback:g.pushState,args:arguments,queue:f}),!1;g.busy(!0);var h=g.createStateObject(b,d,e),i=g.getHashByState(h),j=g.getState(!1),k=g.getHashByState(j),l=g.getHash();return g.storeState(h),g.expectedStateId=h.id,g.recycleState(h),g.setTitle(h),i===k?(g.busy(!1),!1):i!==l&&i!==g.getShortUrl(c.location.href)?(g.setHash(i,!1),!1):(g.saveState(h),g.Adapter.trigger(a,"statechange"),g.busy(!1),!0)},g.replaceState=function(a,b,c,d){if(g.getHashByUrl(c))throw new Error("History.js does not support states with fragement-identifiers (hashes/anchors).");if(d!==!1&&g.busy())return g.pushQueue({scope:g,callback:g.replaceState,args:arguments,queue:d}),!1;g.busy(!0);var e=g.createStateObject(a,b,c),f=g.getState(!1),h=g.getStateByIndex(-2);return g.discardState(f,e,h),g.pushState(e.data,e.title,e.url,!1),!0}),g.emulated.pushState&&g.getHash()&&!g.emulated.hashChange&&g.Adapter.onDomLoad(function(){g.Adapter.trigger(a,"hashchange")})},typeof g.init!="undefined"&&g.init()}(window),function(a,b){"use strict";var c=a.console||b,d=a.document,e=a.navigator,f=a.sessionStorage||!1,g=a.setTimeout,h=a.clearTimeout,i=a.setInterval,j=a.clearInterval,k=a.JSON,l=a.alert,m=a.History=a.History||{},n=a.history;k.stringify=k.stringify||k.encode,k.parse=k.parse||k.decode;if(typeof m.init!="undefined")throw new Error("History.js Core has already been loaded...");m.init=function(){return typeof m.Adapter=="undefined"?!1:(typeof m.initCore!="undefined"&&m.initCore(),typeof m.initHtml4!="undefined"&&m.initHtml4(),!0)},m.initCore=function(){if(typeof 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