Prova questo.
codice:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<script language="JavaScript" type="text/javascript">
<!--
function cancel(riga) {
riga.id = "daCancellare";
tBody = riga.parentElement;
for (i=0;i<tBody.rows.length;i++) {
var curTR = tBody.rows(i);
if (curTR.id == "daCancellare") {
tBody.deleteRow(i);
} // if (curTR.id == "daCancellare")
} // for (i=0;i<tBody.rows.length;i++)
} // function cancel(riga)
//-->
</script>
<title>Untitled</title>
</head>
<body>
Clicca su una riga per cancellarla
<table summary="" border=1>
<tr onclick="cancel(this);">
<td>10</td><td>11</td><td>12</td><td>13</td>
</tr>
<tr onclick="cancel(this);">
<td>20</td><td>21</td><td>22</td><td>23</td>
</tr>
<tr onclick="cancel(this);">
<td>30</td><td>31</td><td>32</td><td>33</td>
</tr>
</table>
</body>
</html>