diff --git a/app/assets/javascripts/tinymce/plugins/uploadimage/plugin.js b/app/assets/javascripts/tinymce/plugins/uploadimage/plugin.js
index 860c63d..d816d5a 100644
--- a/app/assets/javascripts/tinymce/plugins/uploadimage/plugin.js
+++ b/app/assets/javascripts/tinymce/plugins/uploadimage/plugin.js
@@ -4,22 +4,22 @@
   tinymce.create('tinymce.plugins.UploadImage', {
     UploadImage: function(ed, url) {
       var form,
-          iframe,
-          win,
-          throbber,
-          selected_class = '',
-          editor = ed;
+        iframe,
+        win,
+        throbber,
+        selectedClass = '',
+        editor = ed;
 
       function showDialog() {
         var classList = getClassList();
         var body = [
-          {type: 'iframe',  url: 'javascript:void(0)'},
-          {type: 'textbox', name: 'file', label: ed.translate('Choose an image'), subtype: 'file'},
-          {type: 'textbox', name: 'alt',  label: ed.translate('Image description')}
+          { type: 'iframe', url: 'javascript:void(0)' },
+          { type: 'textbox', name: 'file', label: ed.translate('Choose an image'), subtype: 'file' },
+          { type: 'textbox', name: 'alt', label: ed.translate('Image description') }
         ];
 
         if (classList.length > 0) {
-          selected_class = classList[0].value;
+          selectedClass = classList[0].value;
           body = body.concat([
             {
               type: 'listbox',
@@ -27,47 +27,50 @@
               label: ed.translate('Class'),
               values: classList,
               onSelect: function(e) {
-                selected_class = this.value();
+                selectedClass = this.value();
               }
             }
           ]);
         }
 
         body = body.concat([
-          {type: 'container', classes: 'error', html: "<p style='color: #b94a48;'>&nbsp;</p>"},
+          { type: 'container', classes: 'error', html: "<p style='color: #b94a48;'>&nbsp;</p>" },
 
           // Trick TinyMCE to add a empty div that "preloads" the throbber image
-          {type: 'container', classes: 'throbber'}
+          { type: 'container', classes: 'throbber' }
         ]);
 
-        win = editor.windowManager.open({
-          title: ed.translate('Insert an image from your computer'),
-          width:  520 + parseInt(editor.getLang('uploadimage.delta_width', 0), 10),
-          height: 180 + parseInt(editor.getLang('uploadimage.delta_height', 0), 10),
-          body: body,
-          buttons: [
-            {
-              text: ed.translate('Insert'),
-              onclick: insertImage,
-              subtype: 'primary'
-            },
-            {
-              text: ed.translate('Cancel'),
-              onclick: ed.windowManager.close
-            }
-          ],
-        }, {
-          plugin_url: url
-        });
+        win = editor.windowManager.open(
+          {
+            title: ed.translate('Insert an image from your computer'),
+            width: 520 + parseInt(editor.getLang('uploadimage.delta_width', 0), 10),
+            height: 180 + parseInt(editor.getLang('uploadimage.delta_height', 0), 10),
+            body: body,
+            buttons: [
+              {
+                text: ed.translate('Insert'),
+                onclick: insertImage,
+                subtype: 'primary'
+              },
+              {
+                text: ed.translate('Cancel'),
+                onclick: ed.windowManager.close
+              }
+            ]
+          },
+          {
+            plugin_url: url
+          }
+        );
 
         /* WHY DO YOU HATE <form>, TINYMCE!? */
-        iframe = win.find("iframe")[0];
+        iframe = win.find('iframe')[0];
         form = createElement('form', {
-          action: ed.getParam("uploadimage_form_url", "/tinymce_assets"),
+          action: ed.getParam('uploadimage_form_url', '/tinymce_assets'),
           target: iframe._id,
-          method: "POST",
+          method: 'POST',
           enctype: 'multipart/form-data',
-          accept_charset: "UTF-8",
+          accept_charset: 'UTF-8'
         });
 
         // Might have several instances on the same page,
@@ -75,33 +78,35 @@
         iframe.getEl().name = iframe._id;
 
         // Create some needed hidden inputs
-        form.appendChild(createElement('input', {type: "hidden", name: "utf8", value: "✓"}));
-        form.appendChild(createElement('input', {type: 'hidden', name: 'authenticity_token', value: getMetaContents('csrf-token')}));
-        form.appendChild(createElement('input', {type: 'hidden', name: hintName(), value: hintValue()}));
+        form.appendChild(createElement('input', { type: 'hidden', name: 'utf8', value: '✓' }));
+        form.appendChild(
+          createElement('input', { type: 'hidden', name: 'authenticity_token', value: getMetaContents('csrf-token') })
+        );
+        form.appendChild(createElement('input', { type: 'hidden', name: hintName(), value: hintValue() }));
 
         var el = win.getEl();
-        var body = document.getElementById(el.id + "-body");
+        var body = document.getElementById(el.id + '-body');
 
         // Copy everything TinyMCE made into our form
         var containers = body.getElementsByClassName('mce-container');
-        for(var i = 0; i < containers.length; i++) {
+        for (var i = 0; i < containers.length; i++) {
           form.appendChild(containers[i]);
         }
 
         // Fix inputs, since TinyMCE hates HTML and forms
         var inputs = form.getElementsByTagName('input');
-        for(var i = 0; i < inputs.length; i++) {
+        for (var i = 0; i < inputs.length; i++) {
           var ctrl = inputs[i];
 
-          if(ctrl.tagName.toLowerCase() == 'input' && ctrl.type != "hidden") {
-            if(ctrl.type == "file") {
+          if (ctrl.tagName.toLowerCase() === 'input' && ctrl.type !== 'hidden') {
+            if (ctrl.type === 'file') {
               ctrl.name = inputName('file');
 
               // Hack styles
               tinymce.DOM.setStyles(ctrl, {
-                'border': 0,
-                'boxShadow': 'none',
-                'webkitBoxShadow': 'none',
+                border: 0,
+                boxShadow: 'none',
+                webkitBoxShadow: 'none'
               });
             } else {
               ctrl.name = inputName('alt');
@@ -129,7 +134,7 @@
       }
 
       function insertImage() {
-        if(getInputValue(inputName('file')) == "") {
+        if (getInputValue(inputName('file')) === '') {
           return handleError('You must choose a file');
         }
 
@@ -143,7 +148,7 @@
          * of errors and re-submitting afterwards.
          */
         var target = iframe.getEl();
-        if(target.attachEvent) {
+        if (target.attachEvent) {
           target.detachEvent('onload', uploadDone);
           target.attachEvent('onload', uploadDone);
         } else {
@@ -155,20 +160,20 @@
       }
 
       function uploadDone() {
-        if(throbber) {
+        if (throbber) {
           throbber.hide();
         }
         try {
           var target = iframe.getEl();
-          if(target.document || target.contentDocument) {
+          if (target.document || target.contentDocument) {
             var doc = target.contentDocument || target.contentWindow.document;
-            if(String(doc.contentType).indexOf("html") > -1) {
-              handleResponse(doc.getElementsByTagName("body")[0].innerHTML);
+            if (String(doc.contentType).indexOf('html') > -1) {
+              handleResponse(doc.getElementsByTagName('body')[0].innerHTML);
             } else {
-              handleResponse(doc.getElementsByTagName("pre")[0].innerHTML);
+              handleResponse(doc.getElementsByTagName('pre')[0].innerHTML);
             }
           }
-        } catch(e) {
+        } catch (e) {
           handleError("Didn't get a response from the server");
         }
       }
@@ -177,34 +182,36 @@
         try {
           var json = tinymce.util.JSON.parse(ret);
 
-          if(json["error"]) {
-            handleError(json["error"]["message"]);
+          if (json['error']) {
+            handleError(json['error']['message']);
           } else {
             ed.execCommand('mceInsertContent', false, buildHTML(json));
             ed.windowManager.close();
           }
-        } catch(e) {
+        } catch (e) {
           handleError('Got a bad response from the server');
         }
       }
 
       function clearErrors() {
-        var message = win.find(".error")[0].getEl();
+        var message = win.find('.error')[0].getEl();
 
-        if(message)
-          message.getElementsByTagName("p")[0].innerHTML = "&nbsp;";
+        if (message) {
+          message.getElementsByTagName('p')[0].innerHTML = '&nbsp;';
+        }
       }
 
       function handleError(error) {
-        var message = win.find(".error")[0].getEl();
+        var message = win.find('.error')[0].getEl();
 
-        if(message)
-          message.getElementsByTagName("p")[0].innerHTML = ed.translate(error);
+        if (message) {
+          message.getElementsByTagName('p')[0].innerHTML = ed.translate(error);
+        }
       }
 
       function createElement(element, attributes) {
         var el = document.createElement(element);
-        for(var property in attributes) {
+        for (var property in attributes) {
           if (!(attributes[property] instanceof Function)) {
             el[property] = attributes[property];
           }
@@ -215,36 +222,41 @@
 
       function buildHTML(json) {
         var image = json[ed.getParam('uploadimage_model', 'image')];
-        var default_class = ed.getParam("uploadimage_default_img_class", "");
-        var figure = ed.getParam("uploadimage_figure", false);
-        var alt_text = getInputValue(inputName('alt'));
+        var defaultClass = ed.getParam('uploadimage_default_img_class', '');
+        var figure = ed.getParam('uploadimage_figure', false);
+        var altText = getInputValue(inputName('alt'));
 
-        var imgstr = "<img src='" + image["url"] + "'";
+        var imgstr = "<img src='" + image['url'] + "'";
 
-        if(default_class != "")
-          imgstr += " class='" + default_class + ' ' + selected_class + "'";
+        if (defaultClass !== '') {
+          imgstr += " class='" + defaultClass + ' ' + selectedClass + "'";
+        }
 
-        if(image["height"])
-          imgstr += " height='" + image["height"] + "'";
-        if(image["width"])
-          imgstr += " width='"  + image["width"]  + "'";
+        if (image['height']) {
+          imgstr += " height='" + image['height'] + "'";
+        }
+        if (image['width']) {
+          imgstr += " width='" + image['width'] + "'";
+        }
 
-        imgstr += " alt='" + alt_text + "'/>";
+        imgstr += " alt='" + altText + "'/>";
 
-        if(figure) {
-          var figureClass = ed.getParam("uploadimage_figure_class", "figure");
-          var figcaptionClass = ed.getParam("uploadimage_figcaption_class", "figcaption");
+        if (figure) {
+          var figureClass = ed.getParam('uploadimage_figure_class', 'figure');
+          var figcaptionClass = ed.getParam('uploadimage_figcaption_class', 'figcaption');
 
-          var figstr = "<figure";
+          var figstr = '<figure';
 
-          if (figureClass !== "")
+          if (figureClass !== '') {
             figstr += " class='" + figureClass + "'";
-          figstr += ">" + imgstr;
-          figstr += "<figcaption";
-          if (figcaptionClass != "")
+          }
+          figstr += '>' + imgstr;
+          figstr += '<figcaption';
+          if (figcaptionClass !== '') {
             figstr += " class='" + figcaptionClass + "'";
-          figstr += ">" + alt_text + "</figcaption>";
-          figstr += "</figure>";
+          }
+          figstr += '>' + altText + '</figcaption>';
+          figstr += '</figure>';
 
           return figstr;
         } else {
@@ -253,27 +265,31 @@
       }
 
       function getInputValue(name) {
-        var inputs = form.getElementsByTagName("input");
+        var inputs = form.getElementsByTagName('input');
 
-        for(var i in inputs)
-          if(inputs[i].name == name)
+        for (var i in inputs) {
+          if (inputs[i].name === name) {
             return inputs[i].value;
+          }
+        }
 
-        return "";
+        return '';
       }
 
       function getMetaContents(mn) {
         var m = document.getElementsByTagName('meta');
 
-        for(var i in m)
-          if(m[i].name == mn)
+        for (var i in m) {
+          if (m[i].name === mn) {
             return m[i].content;
+          }
+        }
 
         return null;
       }
 
       function getClassList() {
-        var config =  ed.getParam('image_class_list', []);
+        var config = ed.getParam('image_class_list', []);
         var values = [];
         for (var i = 0; i < config.length; i++) {
           values[i] = {
@@ -282,20 +298,20 @@
           };
         }
         return values;
-      };
+      }
 
       if (editor.getParam('uploadimage', true)) {
         // Add a button that opens a window
         editor.addButton('uploadimage', {
           tooltip: ed.translate('Insert an image from your computer'),
-          icon : 'image',
+          icon: 'image',
           onclick: showDialog
         });
 
         // Adds a menu item to the tools menu
         editor.addMenuItem('uploadimage', {
           text: ed.translate('Insert an image from your computer'),
-          icon : 'image',
+          icon: 'image',
           context: 'insert',
           onclick: showDialog
         });