Cant navigate form via "tab" key

I have created a form, and I think I did everything right, but I cant navigate move around the table using the keyboard at all!

 <html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<title>Untitled Document</title>
</head>
<body>
<form name="basic form" method="post" action="">
  <p>
	<label>Company
	<input type="text" name="textfield" accesskey="y" tabindex="1">
	</label>
  </p>
  <p>
	<label for="textfield">Country</label>
	<input type="text" name="textfield" accesskey="r" tabindex="2" id="textfield">
</p>
  <p>
	<label for="textfield">City</label>
	<input type="text" name="textfield" accesskey="t" tabindex="3" id="textfield"> 
  </p>
  <p>
  </p>
  <p>
	<label>Operating System
	<select name="select" size="1" accesskey="o" tabindex="4">
	  <option value="1">Macintosh</option>
	  <option value="2">Windows</option>
	</select>
</label>
  </p>
  <p>
	<label></label>
  </p>
</form>
</body>
</html>