<html>
    <head>
        <title>Title</title>
    </head>
    <body>
        <form name="testform">
            <input name="foo" type="text" size="12"> <!-- this is one bad one with a missin maxlength -->
            <input name="bar" type="radio">
            <input name="bat" type="text" disabled> <!-- no maxlength, but disabled so it's OK -->
            <input name="baz" type="text" maxlength=" 14 "> <!-- spaces shouldn't be a problem -->
            <input name="quux" type="text" size="12" maxlength="dogs"> <!-- not an integer -->
            <input name="crunchy" type="text" size="12" maxlength="-1"> <!-- negative -->
        </form>
    </body>
</html>