Demo

First Name Last Name Age Total Discount Date
Peter Parker 28 $9.99 20% Jul 6, 2006 8:14 AM
John Hood 33 $19.99 25% Dec 10, 2002 5:14 AM
Clark Kent 18 $15.89 44% Jan 12, 2003 11:14 AM
Bruce Almighty 45 $153.19 44% Jan 18, 2001 9:12 AM
Bruce Evans 22 $13.19 11% Jan 18, 2007 9:12 AM

Javascript

$(document).ready(function() {
	// extend the default setting to always include the zebra widget.
	$.tablesorter.defaults.widgets = ['zebra'];
	// extend the default setting to always sort on the first column
	$.tablesorter.defaults.sortList = [[0,0]];
	// call the tablesorter plugin
	$("table").tablesorter();
});

HTML

<table cellspacing="1" class="tablesorter">			
	<thead>>
		<tr>
			<th>first name</th>
			<th>last name</th>
			<th>age</th>
			<th>total</th>
			<th>discount</th>
			<th>date</th>
		</tr>
	</thead>
	<tbody>
		<tr>
			<td>peter</td>
			<td>parker</td>
			<td>28</td>
			<td>$9.99</td>
			<td>20%</td>
			<td>jul 6, 2006 8:14 am</td>
		</tr>
		<tr>
			<td>john</td>
			<td>hood</td>
			<td>33</td>
			<td>$19.99</td>
			<td>25%</td>
			<td>dec 10, 2002 5:14 am</td>
		</tr>
		<tr>
			<td>clark</td>
			<td>kent</td>
			<td>18</td>
			<td>$15.89</td>
			<td>44%</td>
			<td>jan 12, 2003 11:14 am</td>
		</tr>
		<tr>
			<td>bruce</td>
			<td>almighty</td>
			<td>45</td>
			<td>$153.19</td>
			<td>44%</td>
			<td>jan 18, 2001 9:12 am</td>
		</tr>
		<tr>
			<td>bruce</td>
			<td>evans</td>
			<td>22</td>
			<td>$13.19</td>
			<td>11%</td>
			<td>jan 18, 2007 9:12 am</td>
		</tr>
	</tbody>
</table>