var singleSelect = true;
var sortSelect = true;
var sortPick = true;

function addIt() {
  var selectList = document.getElementById("SelectList");
  var selectIndex = selectList.selectedIndex;
  var selectOptions = selectList.options;
  var pickList = document.getElementById("PickList");
  var pickOptions = pickList.options;
  var pickOLength = pickOptions.length;
  
  while (selectIndex > -1) {
    pickOptions[pickOLength] = new Option(selectList[selectIndex].text);
    pickOptions[pickOLength].value = selectList[selectIndex].value;
    if (singleSelect) {
      selectOptions[selectIndex] = null;
    }
    if (sortPick) {
      var tempText;
      var tempValue;
      while (pickOLength > 0 && pickOptions[pickOLength].value < pickOptions[pickOLength-1].value) {
        tempText = pickOptions[pickOLength-1].text;
        tempValue = pickOptions[pickOLength-1].value;
        pickOptions[pickOLength-1].text = pickOptions[pickOLength].text;
        pickOptions[pickOLength-1].value = pickOptions[pickOLength].value;
        pickOptions[pickOLength].text = tempText;
        pickOptions[pickOLength].value = tempValue;
        pickOLength = pickOLength - 1;
      }
    }
    selectIndex = selectList.selectedIndex;
    pickOLength = pickOptions.length;
  }
  selectOptions[0].selected = true;
}

function delIt() {
  var selectList = document.getElementById("SelectList");
  var selectOptions = selectList.options;
  var selectOLength = selectOptions.length;
  var pickList = document.getElementById("PickList");
  var pickIndex = pickList.selectedIndex;
  var pickOptions = pickList.options;
  while (pickIndex > -1) {
    if (singleSelect) {
      selectOptions[selectOLength] = new Option(pickList[pickIndex].text);
      selectOptions[selectOLength].value = pickList[pickIndex].value;
    }
    pickOptions[pickIndex] = null;
    if (singleSelect && sortSelect) {
      var tempText;
      var tempValue;
      while (selectOLength > 0 && selectOptions[selectOLength].value < selectOptions[selectOLength-1].value) {
        tempText = selectOptions[selectOLength-1].text;
        tempValue = selectOptions[selectOLength-1].value;
        selectOptions[selectOLength-1].text = selectOptions[selectOLength].text;
        selectOptions[selectOLength-1].value = selectOptions[selectOLength].value;
        selectOptions[selectOLength].text = tempText;
        selectOptions[selectOLength].value = tempValue;
        selectOLength = selectOLength - 1;
      }
    }
    pickIndex = pickList.selectedIndex;
    selectOLength = selectOptions.length;
  }
}

function selIt(btn) {
  var pickList = document.getElementById("PickList");
  var pickOptions = pickList.options;
  var pickOLength = pickOptions.length;
  if (pickOLength < 1) {
    alert("No Bookmaker selected\nPlease Select using the [->] button");
    return false;
  }
  for (var i = 0; i < pickOLength; i++) {
    pickOptions[i].selected = true;
  }
  return true;
}