random quiz buttons from array

I have this code for a random quiz, it works fine, but the client want's buttons for a multiple choice instead of a dropdown, this is the code:

<div id="QText"></div>
<br/>
<select id="choices">
    <option value="">Elije una Respuesta</option>
</select>

function nextQuestion() {
  var question = questions[qcount];
  document.getElementById("QText").innerHTML = question[0];
  var select = document.getElementById("choices");
  select.options.length = 1;
  for ( var a = 1; a < question.length; ++a ) {
    var ans = question[a];
    if ( ans.charAt(0) == "*" ) ans = ans.substring(1);
    select.options[a] = new Option( ans, question[a] );
  }
}

At some point i wrote a code for the input buttons but it created a button for every entry in the array

Is there a way to do this without changing the whole code?