SO fiddle

Test Fiddle mainly for SO Questions

by Nick Craver

HTML

<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/overcast/jquery-ui.css">
<table>
<tr>
    <td>1</td>
    <td>2</td>
    <td>3</td>
    <td>4</td>
    <td>5</td>
    <td>6</td>
    <td>7</td>
    <td>8</td>
    <td>9</td>
</tr>
</table>

CSS

td { padding: 10px; }
.border { border: solid 1px #ddd; }

JavaScript

$("tr td").slice(2, 7).css('color', 'red');
    
var tr = document.getElementsByTagName("tr")[0];
var tds = tr.getElementsByTagName("td");
for(var i = 2; i<7; i++) tds[i].className = "border";