Other - Retrieve data from dynamic drop down

function showNumber(selectId, divNumber) {

var select = document.getElementById(selectId);
var noItems = document.getElementById(divNumber);
var option = document.createElement('option');

for (var i = 0; i <= 20; i++) {
option.innerHTML += i;
option.value += i;
select.appendChild(option);
}

select.onchange = function () {
var noZero = select.innerHTML;
noZero = parseInt(noZero);
if (noZero > 0) {
noItems.innerHTML = noZero;
}
else {
noItems.innerHTML="";
}

}

function showNumber(selectId, divNumber, prodName, calcPrice) {

  var select = document.getElementById(selectId);
  var noItems = document.getElementById(divNumber);
  var product = prodName.itemName;
  var getPrice = floatPrice(calcPrice);
  
  for (var i = 0; i <= 20; i++) {

    var option = document.createElement('option');
    option.innerHTML = i;
    option.value = i;

    select.appendChild(option);
  }

  select.onchange = function () {
    var noZero = select.value;
/*parseValue takes the same select.value and parses it, as otherwise the variable is concatenated with the string in the answer and can't perform in calculations*/
    var parseValue = parseInt(select.value,10);
    if (noZero > 0) {
      var itemsPrice = parseFloat(parseValue * getPrice);
      divQuantity.innerHTML = noZero +" "+ product + " "+ "£"+ itemsPrice;
      
      
    } else divQuantity.innerHTML = " ";
  };

}
  function showDivs(){
displayQuant('monkey', 'divQuant1', Monkey, Monkey);
displayQuant('bear', 'divQuant2', Bear, Bear);