Introducing the selectable widget
The first thing we should do is invoke the default implementation to get a glimpse of the basic functionality provided by this component.
In a new file in your text editor, add the following code:
<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>Selectable</title>
<link rel="stylesheet" href="development-bundle/themes/redmond/jquery.ui.all.css">
<script src="js/jquery-2.0.3.js"></script>
<script src="development-bundle/ui/jquery.ui.core.js"></script>
<script src="development-bundle/ui/jquery.ui.widget.js"></script>
<script src="development-bundle/ui/jquery.ui.mouse.js"></script>
<script src="development-bundle/ui/jquery.ui.selectable.js"></script>
<script>
$(document).ready(function($){
$("#selectables").selectable();
});
</script>
</head>
<body>
<ul...
