问题是什么?是不是这样
<SCRIPT language="javascrpit">
function outwrite(){
document.write ('#489840');
}
//-->
</SCRIPT><table width="100%" border="1">
<tr>
<td onmouseover='bgColor="javascript:return outwrite();"' onmouseout='bgColor=""'> </td>
</tr>
</table>
<SCRIPT language="javascrpit">
function outwrite(){
document.write ('#489840');
}
//-->
</SCRIPT><table width="100%" border="1">
<tr>
<td onmouseover='bgColor="javascript:return outwrite();"' onmouseout='bgColor=""'> </td>
</tr>
</table>
<tr>
<td onmouseover="thid.bgColor=#489840" onmouseout="this.bgColor=''"> </td>
</tr>
</table>
<tr>
<td onmouseover="this.bgColor=#489840" onmouseout="this.bgColor=''"> </td>
</tr>
</table>