disable the strech button if in an auto zoom mode

css/styles.css

@@ -105,7 +105,8 @@
 	background-position-x: -24px;
 }
 
-#cb-toolbar button.disabled {
+#cb-toolbar button[disabled=disabled] {
+	cursor: auto;
 	background-position-x: -48px;
 }
 

lib/ComicBook.js

@@ -5,7 +5,6 @@
 
 	Fo sho:
 		- fix last page loading bug
-		- disable the strech button if in an auto zoom mode
 		- 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
@@ -629,6 +628,9 @@ function ComicBook(id, srcs, opts) {
 		// revert page mode back to double if it was auto switched for a double page spread
 		if (is_double_page_spread) { options.displayMode = "double"; }
 
+		// disable the fit width button if needed
+		$("button.cb-fit-width").attr("disabled", (options.zoomMode === "fitWidth"));
+
 		// user callback
 		if (typeof options.afterDrawPage === "function") {
 			options.afterDrawPage(pointer + 1);