有关滚动导航菜单的问题

[housemouse]

我的滚动导航菜单的程序如下：
<tr>
<td height="240" align="center">
<span class="style4">
<script language=javascript>
var index = 3
link = new Array(2);
text = new Array(2);
link[0] ='http://www.sohu.com'
link[1] ='http://www.sina.com'
link[2] ='http://www.baidu.com'
text[0] ='搜狐'
text[1] ='新浪'
text[2] ='百度'
document.write ("<marquee scrollamount='3' scrolldelay='150' direction= 'up' width='120' height='230 align='center'>");
for (i=0;i<index;i++)
{
document.write ("<a href="+link[i]+" target='_blank'>");
document.write (text[i] + "</A><br><br>");
}
document.write ("</marquee>")
</script>
</span>
</td>
</tr>
如何让我的这个导航菜单在滚动的时候不要在字的下面有一条横线，另外如何让这个导航菜单在滚动的时候显示在表格的中间，而不是默认的左边，请各位指教！！！！

[hookee]

<table width="400">
	<tr> 
<td height="240" align="center"> 
<span class="style4" style="text-align:center"> 
<script language=javascript> 
var index = 3 
link = new Array(2); 
text = new Array(2); 
link[0] ='http://www.sohu.com' 
link[1] ='http://www.sina.com' 
link[2] ='http://www.baidu.com' 
text[0] ='搜狐' 
text[1] ='新浪' 
text[2] ='百度' 
document.write (" <marquee scrollamount='3' scrolldelay='150' direction= 'up' width='120' height='230 align='center'>"); 
for (i=0;i <index;i++) 
{ 
document.write (" <a href="+link[i]+" target='_blank' style='text-decoration:none;'>"); 
document.write (text[i] + " </A> <br> <br>"); 
} 
document.write (" </marquee>") 
</script> 
</span> 
</td> 
</tr> 

</table>

[housemouse]

为什么我按照你的修改的 滚动的字还是左对齐的？？还有下面的一条横线也还在？？？