一个很简单的办法实现TD的加亮效果.

function Menu_Init(obj){ 
   var tds = obj.getElementsByTagName("td"); 
    for (var i = 0; i < tds.length; i++) 
     { 
       if (tds[i].className == "MenuOptions") 
      { 
        tds[i].onmouseover = switch_bg; 
        tds[i].onmouseout = switch_bg; 
      }               
      } 

} 
function switch_bg(e){ 
   if (this.className=="MenuOptions_click") return 
   this.className = (this.className == "MenuOptions") ? "MenuOptions_hilite" : "MenuOptions"; 
 }

Menu_Init(obj)用于初始化 Table.

所需要的CSS

.MenuOptions{ 
 padding:2px; 
 cursor:hand; 
 color:#000000; 
} 
.MenuOptions_hilite{ 
  padding:1px; 
  border:outset 1px #669999; 
  cursor:hand; 
 color:#000000; 
}

table示范

<table id=MenuTools border="0" cellspacing="2" style="border:1px solid #000000;color:#000000;font-size:12px"> 
<tr> 
<td class="MenuOptions" >大家好呀 
<td class="MenuOptions" >很容易实现的效果 
<td class="MenuOptions" >喜欢的就拿去用吧 
<td >这个不允许加亮 
</tr> 
</table>

演示


function Menu_Init(obj){
var tds = obj.getElementsByTagName("td");
for (var i = 0; i < tds.length; i++)
{
if (tds[i].className == "MenuOptions")
{
tds[i].onmouseover = switch_bg;
tds[i].onmouseout = switch_bg;
}
}
}
function switch_bg(e){
if (this.className=="MenuOptions_click") return
this.className = (this.className == "MenuOptions") ? "MenuOptions_hilite" : "MenuOptions";
}


.MenuOptions{
padding:2px;
cursor:hand;
color:#000000;
}
.MenuOptions_hilite{
padding:1px;
border:outset 1px #669999;
cursor:hand;
color:#000000;
}




大家好呀
很容易实现的效果
喜欢的就拿去用吧
这个不允许加亮


Menu_Init(MenuTools)

[Ctrl+A 全选 注:如需引入外部Js需刷新才能执行]