JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://ajax.microsoft.com/ajax/jquery.validate/1.7/jquery.validate.js"></script>
<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/ui-lightness/jquery-ui.css">
<table>
    <tbody>
        <tr>
            <td>hover<a href="#" class='edit'>edit</a>​​</td>
        </tr>
        <tr>
            <td>hover<a href="#" class='edit'>edit</a>​​</td>
        </tr>
        <tr>
            <td>hover<a href="#" class='edit'>edit</a>​​</td>
        </tr>
    </tbody>
</table>

CSS

tr a.edit {
    display:none;
}
tr:hover a.edit {
    display:inline;
}
tr.hasInput a.edit {
    display:none;
}​

JavaScript

$(document).ready(function(){

    $('a.edit').click(function(e){
        e.preventDefault();
        $(this).after('<input>')
                          .closest('tr').addClass('hasInput');
    });
});