I have a list of radio buttons which all denote a different value.
How do I attach this value to each button, and then make the value of that button appear in a numeric field beside it and how can I de-select the button and its value?
Radio buttons come in groups. In LiveCycle Designer, when you select a single button, you're selecting the entire group as far as the button values are concerned. Look on the Object window. You'll find a listing there of the radio button group values, and you can edit them.
To get a value from a radio button just use the fields name.
In JavaScript use this code for a Radio button group named MyRadio