Function Render-Radio-Buttons
(
render-radio-buttons < name > < selections > &key < id > (class
radio) < selected-value > )
Renders a group of radio buttons.
'name' - name of radio buttons.
'selections' - a list of selections. May be an association list, in
which case its car is used to dispaly selection text, and cdr is used
for the value.
'id' - id of a label that holds the radio buttons.
'class' - class of the label and of radio buttons.
'selected-value' - selected radio button value.
