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/themes/dot-luv/jquery-ui.css">
<a href='#' id='check_var'>Check values</a><br/><br/>
Group 1<br/>
<input type="radio"  name="r" value="radio1"/> radio1
<input type="radio"  name="r" value="radio2"/> radio2
<br/><br/>
Group 2<br/>
<input type="radio"  name="s" value="radio3"/> radio3
<input type="radio"  name="s" value="radio4"/> radio4

JavaScript

$('a#check_var').click(function() {
alert($("input:radio[name='r']:checked").val()+ ' '+
      $("input:radio[name='s']:checked").val());
});