diff --git a/web/debugger.js b/web/debugger.js
index aeb3ab4ce..0cfe26355 100644
--- a/web/debugger.js
+++ b/web/debugger.js
@@ -44,7 +44,7 @@ var FontInspector = (function FontInspectorClosure() {
     }
   }
   return {
-    // Poperties/functions needed by PDFBug.
+    // Properties/functions needed by PDFBug.
     id: 'FontInspector',
     name: 'Font Inspector',
     panel: null,
@@ -140,7 +140,7 @@ var StepperManager = (function StepperManagerClosure() {
   var stepperChooser = null;
   var breakPoints = {};
   return {
-    // Poperties/functions needed by PDFBug.
+    // Properties/functions needed by PDFBug.
     id: 'Stepper',
     name: 'Stepper',
     panel: null,
@@ -207,7 +207,7 @@ var StepperManager = (function StepperManagerClosure() {
 var Stepper = (function StepperClosure() {
   function Stepper(panel, pageIndex, initialBreakPoints) {
     this.panel = panel;
-    this.len;
+    this.len = 0;
     this.breakPoint = 0;
     this.nextBreakPoint = null;
     this.pageIndex = pageIndex;
@@ -236,6 +236,7 @@ var Stepper = (function StepperClosure() {
       headerRow.appendChild(c('th', 'fn'));
       headerRow.appendChild(c('th', 'args'));
 
+      var self = this;
       for (var i = 0; i < IRQueue.fnArray.length; i++) {
         var line = c('tr');
         line.className = 'line';
@@ -249,7 +250,6 @@ var Stepper = (function StepperClosure() {
         cbox.type = 'checkbox';
         cbox.className = 'points';
         cbox.checked = checked;
-        var self = this;
         cbox.onclick = (function(x) {
           return function() {
             if (this.checked)
@@ -298,7 +298,7 @@ var Stepper = (function StepperClosure() {
             callback();
             break;
         }
-      }
+      };
       dom.addEventListener('keydown', listener, false);
       self.goTo(idx);
     },
@@ -331,7 +331,7 @@ var Stats = (function Stats() {
     return false;
   }
   return {
-    // Poperties/functions needed by PDFBug.
+    // Properties/functions needed by PDFBug.
     id: 'Stats',
     name: 'Stats',
     panel: null,
@@ -429,12 +429,12 @@ var PDFBug = (function PDFBugClosure() {
 
       // Initialize all the debugging tools.
       var tools = this.tools;
+      var self = this;
       for (var i = 0; i < tools.length; ++i) {
         var tool = tools[i];
         var panel = document.createElement('div');
         var panelButton = document.createElement('button');
         panelButton.textContent = tool.name;
-        var self = this;
         panelButton.addEventListener('click', (function(selected) {
           return function(event) {
             event.preventDefault();
diff --git a/web/viewer.js b/web/viewer.js
index a631bc004..1e6bf8a12 100644
--- a/web/viewer.js
+++ b/web/viewer.js
@@ -117,7 +117,7 @@ var Settings = (function SettingsClosure() {
     if (isLocalStorageEnabled)
       database = localStorage.getItem('database') || '{}';
     else
-      return false;
+      return;
 //#else
 //  database = FirefoxCom.requestSync('getDatabase', null) || '{}';
 //#endif
@@ -296,9 +296,10 @@ var PDFView = {
   set page(val) {
     var pages = this.pages;
     var input = document.getElementById('pageNumber');
+    var event = document.createEvent('UIEvents');
+    event.initUIEvent('pagechange', false, false, window, 0);
+
     if (!(0 < val && val <= pages.length)) {
-      var event = document.createEvent('UIEvents');
-      event.initUIEvent('pagechange', false, false, window, 0);
       event.pageNumber = this.page;
       window.dispatchEvent(event);
       return;
@@ -306,8 +307,6 @@ var PDFView = {
 
     pages[val - 1].updateStats();
     currentPageNumber = val;
-    var event = document.createEvent('UIEvents');
-    event.initUIEvent('pagechange', false, false, window, 0);
     event.pageNumber = val;
     window.dispatchEvent(event);
 
@@ -406,7 +405,7 @@ var PDFView = {
 
     var url = this.url.split('#')[0];
 //#if !(FIREFOX || MOZCENTRAL)
-    url += '#pdfjs.action=download', '_parent';
+    url += '#pdfjs.action=download';
     window.open(url, '_parent');
 //#else
 //  // Document isn't ready just try to download with the url.
@@ -432,14 +431,14 @@ var PDFView = {
 //        }
 //      );
 //    },
-//    noData // Error ocurred try downloading with just the url.
+//    noData // Error occurred try downloading with just the url.
 //  );
 //#endif
   },
 
   fallback: function pdfViewFallback() {
 //#if !(FIREFOX || MOZCENTRAL)
-      return;
+//  return;
 //#else
 //  // Only trigger the fallback once so we don't spam the user with messages
 //  // for one PDF.
@@ -746,7 +745,6 @@ var PDFView = {
 
     var numVisible = visibleViews.length;
     if (numVisible === 0) {
-      info('No visible views.');
       return false;
     }
     for (var i = 0; i < numVisible; ++i) {
@@ -800,14 +798,14 @@ var PDFView = {
   search: function pdfViewStartSearch() {
     // Limit this function to run every <SEARCH_TIMEOUT>ms.
     var SEARCH_TIMEOUT = 250;
-    var lastSeach = this.lastSearch;
+    var lastSearch = this.lastSearch;
     var now = Date.now();
-    if (lastSeach && (now - lastSeach) < SEARCH_TIMEOUT) {
+    if (lastSearch && (now - lastSearch) < SEARCH_TIMEOUT) {
       if (!this.searchTimer) {
         this.searchTimer = setTimeout(function resumeSearch() {
             PDFView.search();
           },
-          SEARCH_TIMEOUT - (now - lastSeach)
+          SEARCH_TIMEOUT - (now - lastSearch)
         );
       }
       return;
@@ -894,7 +892,6 @@ var PDFView = {
         } else {
           this.page = pageNumber; // simple page
         }
-        return;
       }
     } else if (/^\d+$/.test(hash)) // page number
       this.page = hash;
@@ -965,7 +962,7 @@ var PDFView = {
             extractPageText(pageIndex + 1);
         }
       );
-    };
+    }
     extractPageText(0);
   },
 
@@ -1671,13 +1668,13 @@ var CustomStyle = (function CustomStyleClosure() {
 
     //if all fails then set to undefined
     return (_cache[propName] = 'undefined');
-  }
+  };
 
   CustomStyle.setProp = function set(propName, element, str) {
     var prop = this.getProp(propName);
     if (prop != 'undefined')
       element.style[prop] = str;
-  }
+  };
 
   return CustomStyle;
 })();
@@ -1746,7 +1743,7 @@ var TextLayerBuilder = function textLayerBuilder(textLayerDiv) {
         // Resume rendering
         renderTimer = setInterval(renderTextLayer, renderInterval);
       }, resumeInterval);
-    }; // textLayerOnScroll
+    } // textLayerOnScroll
 
     window.addEventListener('scroll', textLayerOnScroll, false);
   }; // endLayout