parentElement的应用

<P>&nbsp;</P>
<SCRIPT language=javascript>
function showHide(obj)
{
var objin=obj.parentElement.parentElement.rows[1].style;
objin.display=="none"?objin.display="block":objin.display="none";
}

</SCRIPT>
演示程序
<TABLE height=300 width="100%" border=0>
<TBODY>
<TR>
<TD style="CURSOR: hand" onclick=showHide(this);>...click me </TD></TR>
<TR>
<TD>...显示1 </TD></TR>
<TR>
<TD>...显示2 </TD></TR></TBODY></TABLE>