diff --git a/lib/ComicBook.js b/lib/ComicBook.js
index f78b59b..ae1b193 100755
--- a/lib/ComicBook.js
+++ b/lib/ComicBook.js
@@ -4,7 +4,6 @@
 	TODOs:
 
 	Fo sho:
-		- fix last page loading bug
 		- improve prev/next buttons, only show them when they can possibly work (not at beginning/end)
 		- check for html5 feature support where used: diveintohtml5.org/everything.html or www.modernizr.com
 		- write bin scripts to minify & join all js
@@ -54,16 +53,12 @@ function merge(a, b) {
  * @param {Object} object
  * @returns {ComicBookException}
  */
-function ComicBookException(type, object) {
-
-	this.type = type;
-	this.object = object;
-
-	this.INVALID_PAGE = "invalid page";
-	this.INVALID_PAGE_TYPE = "invalid page type";
-	this.UNDEFINED_CONTROL = "undefined control";
-	this.INVALID_ZOOM_MODE = "invalid zoom mode";
-	this.INVALID_NAVIGATION_EVENT = "invalid navigation event";
+var ComicBookException = {
+	INVALID_PAGE: "invalid page",
+	INVALID_PAGE_TYPE: "invalid page type",
+	UNDEFINED_CONTROL: "undefined control",
+	INVALID_ZOOM_MODE: "invalid zoom mode",
+	INVALID_NAVIGATION_EVENT: "invalid navigation event"
 };
 
 function ComicBook(id, srcs, opts) {
@@ -348,7 +343,7 @@ function ComicBook(id, srcs, opts) {
 	ComicBook.prototype.getControl = function(control) {
 
 		if (typeof this.control[control] === "undefined") {
-			throw new ComicBookException(ComicBookException.UNDEFINED_CONTROL, control);
+			throw ComicBookException.UNDEFINED_CONTROL+' '+control;
 		}
 
 		return this.control[control];
@@ -394,7 +389,7 @@ function ComicBook(id, srcs, opts) {
 	ComicBook.prototype.getPage = function(i) {
 
 		if (i < 0 || i > srcs.length) {
-			throw new ComicBookException(ComicBookException.INVALID_PAGE, i);
+			throw ComicBookException.INVALID_PAGE+' '+i;
 		}
 
 		if (typeof pages[i] === "object") {
@@ -525,8 +520,9 @@ function ComicBook(id, srcs, opts) {
 		if (options.displayMode === "double" && pointer < srcs.length-1) {
 			page2 = ComicBook.prototype.getPage(pointer + 1);
 		}
+
 		if (typeof page !== "object") {
-			throw new ComicBookException(ComicBookException.INVALID_PAGE_TYPE, typeof page);
+			throw ComicBookException.INVALID_PAGE_TYPE+' '+typeof page;
 		}
 
 		var width = page.width;
@@ -572,7 +568,7 @@ function ComicBook(id, srcs, opts) {
 				break;
 
 			default:
-				throw new ComicBookException(ComicBookException.INVALID_ZOOM_MODE, options.zoomMode);
+				throw ComicBookException.INVALID_ZOOM_MODE+' '+options.zoomMode;
 		}
 
 		var canvas_width  = page.width * zoom_scale;
@@ -802,9 +798,7 @@ function ComicBook(id, srcs, opts) {
 				}
 				break;
 			default:
-				throw new ComicBookException(
-					ComicBookException.INVALID_NAVIGATION_EVENT, e.type
-				);
+				throw ComicBookException.INVALID_NAVIGATION_EVENT+' '+e.type;
 		}
 
 		if (side) {