Adiciona valor no combo e ordena

function addToComboboxInOrder(select, value, text) {
var option = document.createElement("option");
option.value = value;
option.innerHTML = text;
for (var i = 0; select.options.length; i++){
if (select.options[i].text.toLowerCase() > text.toLowerCase()){
select.insertBefore(option, select.options[i]);
return;
}
}
select.appendChild(option);
}