<table border=1>
<tr><td RowID=0 onclick="alert(window.document.activeElement.RowID)">a</td></tr>
<tr><td RowID=1 onclick="alert(window.document.activeElement.RowID)">b</td></tr>
</table>
<tr><td RowID=0 onclick="alert(window.document.activeElement.RowID)">a</td></tr>
<tr><td RowID=1 onclick="alert(window.document.activeElement.RowID)">b</td></tr>
</table>
<tr><td>asd</td></tr>
<tr><td>asdlkf</td></tr>
<tr><td>alksdfj</td></tr>
</table>