lassName += ' codesOn';
        } else {
          obj.className = obj.className.replace(' codesOn', '');
        }
      }
      
    </script>
  </head>
  <body>
    <div class="container header">
      <h1>fontello <small>font demo</small></h1>
      <label class="switch">
        <input type="checkbox" onclick="toggleCodes(this.checked)">show codes
      </label>
    </div>
    <div class="container" id="icons">
      <div class="row">
        <div class="the-icons span3" title="Code: 0xe800"><i class="