bug double click with td and div

bug double click with td and div

Hello,

i just try a simple code. 
  1. <div id="test" onclick="$('#txtid').val($('#txtid').val() + 'test/');">
    <table>
        <tr class="montr">
            <td class="montd" id="tdid" onclick="$('#txtid').val($('#txtid').val() + 'toto/');">toto</td>
        </tr>
        <tr>
            <td>titi</td>
        </tr>
        <tr>
            <td>tutu</td>
        </tr>
    </table>
</div>
<input id="txtid" />
If i use script  $("#tdid").click(), the result in input is toto/test/test/.

We have 2 click on DIV, why ?

I use Jquery 1.9.0, it's the same with jQuery 1.6.0.

Thank You
(Sorry for my bad english)