Entry

How do I associate an event handler with a radio button (or even group)?

Aug 23rd, 2000 10:16
Martin Honnen, Kishore Kothapalli,

An event handler is always for a single input element not a group so 
you can do
  function clickHandler (evt) {
    alert(this.name + ': ' + this.value + ' clicked.');
  }
  document.formName.radioButtonName[index].onclick = clickHandler;
or in a loop for every radio button
  var rbg = document.formName.radioName;
  for (var i = 0; i < rbg.length; i++)
    rbg[i].onclick = clickHandler;