Added UPC-A examples

example/static_images.html

@@ -32,9 +32,9 @@
         <button class="next">Next</button>
         <fieldset class="reader-group">
             <label>EAN-8</label>
-            <input type="radio" name="reader" value="ean_8" checked="checked" />
+            <input type="radio" name="reader" value="ean_8" />
             <label>UPC</label>
-            <input type="radio" name="reader" value="upc" />
+            <input type="radio" name="reader" value="upc" checked="checked" />
             <label>Codabar</label>
             <input type="radio" name="reader" value="codabar" />
             <label>Code39</label>

example/static_images.js

@@ -16,7 +16,7 @@ $(function() {
             });
         },
         config: {
-            reader: "ean_8",
+            reader: "upc",
             length: 10
         },
         attachListeners: function() {