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>Test</td>
    <td class="coloron">Test</td>
</tr>
<tr>
    <td>Test</td>
    <td class="coloron">Test</td>
</tr>
<tr>
    <td>Test</td>
    <td class="coloron">Test</td>
</tr>
<tr>
    <td>Test</td>
    <td class="coloron">Test</td>
</tr></table>

CSS

tbody tr.alt td {
  background-color: #e6EEEE;
}
tbody tr td.coloron {
  background-color: red;
}

JavaScript

$("tbody tr:odd ").addClass("alt");