A very simple way to achieve the highlighting effect of TD.

Copy the codeThe code is as follows:

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

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

Menu_Init(obj) is used to initialize Table.

Required CSS

Copy the codeThe code is as follows:

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

Table Demonstration

Copy the codeThe code is as follows:

<table id=MenuTools border="0" cellspacing="2" style="border:1px solid #000000;color:#000000;font-size:12px"> 
<tr> 
<td class="MenuOptions" >Hello everyone
<td class="MenuOptions" >Easy to achieve
<td class="MenuOptions" >Please use it if you like
<td >This is not allowed to be highlighted
</tr> 
</table>

Demo

[Ctrl+A Select all Note:Introducing external Js requires refreshing the page before execution]