With Twitter Bootstrap toggle radio buttons, what's the normal way to get form input?
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I am using Twitter Bootstrap's [Javascript radio toggle buttons](http://twitter.github.com/bootstrap/javascript.html#buttons) and want to get form input based on the state of the toggle. 

The simplest approach I could find is to add an invisible <input type="radio"> tag within the buttons -- [here's the helpful jsFiddle](http://jsfiddle.net/veloper/XYEjs/) example that someone threw up. 

It works nicely, but it's still sort of a kludge. My question is: what's the normal way to get form input from these buttons?