Listing 4.7: use 'read more' link to reveal second paragraph.

Chapter 4/04.js

@@ -2,7 +2,7 @@ $(document).ready(function () {
   "use strict";
 
   var $speech = $('div.speech');
-  var defaultSize = parseFloat($speech.css('fontSize'));
+  var defaultSize = $speech.css('fontSize');
   $('#switcher button').click(function () {
     var num = parseFloat($speech.css('fontSize'));
     switch (this.id) {
@@ -13,10 +13,15 @@ $(document).ready(function () {
         num /= 1.4;
         break;
       default:
-        num = defaultSize;
+        num = parseFloat(defaultSize);
     }
     $speech.css('fontSize', num + 'px');
   });
 
   $('p').eq(1).hide();
+  $('a.more').click(function (event) {
+    event.preventDefault();
+    $('p').eq(1).show();
+    $(this).hide();
+  });
 });