[jQuery] additional events

[jQuery] additional events


hey,
my problem:
with the following code I put a TR in my table. in this TR I have
further (".button_plus") - elements. I want that the user is able to
click on these further elements. how could I realize that?
$(document).ready(function() {
$(".button_plus").click(function() {
        $(this).load( "ajax.php", {template: "testTR"}, function(output){
                $(this).parent().parent().after(output);
                styleTables();
            }
        )
    });
});
//ajax.php returns this:
<tr>
                <td><input name="" type="text" value="Eintrag" /></td>
                <td><input name="" type="text" value="Eintrag" /></td>
                <td><input name="" type="text" value="Eintrag" /></td>
                <td><img class="button_minus" src="images/button_minus.png" />
<img class="button_plus" src="images/button_plus.png" /></td>
            </tr>
I hope you can help me, thank you in advance,
alife