Open file
<body>
<div id="container">
<div class="undo-redo-buttons">
<button class="undo-button" title="Undo">⤺</button>
<button class="redo-button" title="Redo">⤻</button>
<button class="reload-button" title="Reload this demo">↻</button>
</div>
<div class="demo-container">
<!-- This is the object of interest -->
<textarea name="demo-textarea" id="demo-textarea" cols="48" rows="4"></textarea>
</div>
</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<script>window.jQuery || document.write("<script src='../js/jquery.min.js'>\x3C/script>")</script>
<script>
(function ($, _) {
$.fn.disable = function () { return this.attr("disabled", "disabled"); }
})(window.jQuery, window._);
$("button").disable();
</script>
<script src="../js/underscore.js"></script>
<script src="../js/backbone.js"></script>
<script src="../js/demo-textarea.js"></script>
</body>