data-tag
by karin
HTML
<table border="1">
<tr>
<td class="link" data-tag="2007">4,106</td>
<td class="link" data-tag="2008">9,103</td>
<td class="link" data-tag="2009">7,122</td>
</tr>
</table>
CSS
.link {
background:gray;
}
JavaScript
var tbl = $(".link");
$("[data-tag]").on('click', function () {
var year = $(this).attr("data-tag");
alert(year);
});