JSFiddle - React, Tailwind, and code Playground
HTML
<form action=test.asp>
<table id="job_list" border=1>
<tr>
<td>UPC</td>
<td>started at</td>
<td>by</td>
<td>status</td>
</tr>
<tr><input type=hidden name=id value=45745414>
<td>45745414</td>
<td>16/03/2015 8:57:15 AM</td>
<td>Peter</td>
<td>Red</td>
</tr>
<tr><input type=hidden name=id value=45753684>
<td>45753684</td>
<td>10/02/2015 7:57:15 AM</td>
<td>XV</td>
<td>Yellow</td>
</tr>
<tr><input type=hidden name=id value=59845414>
<td>59845414</td>
<td>22/01/2015 8:33:15 AM</td>
<td>Derek</td>
<td>Green</td>
</tr>
</table>
<select name="doThis" onchange="this.form.submit()">
<option></option>
<option value="test123">test123</option>
</select>
</form>
CSS
.selected {
background-color: purple;
color: #FFF;
}
JavaScript
$("#job_list tr").click(function(){
$(this).toggleClass('selected');
});