function newOption(elementId, name) {
    var el = document.getElementById(elementId)
    if (el.value !== "New...") {
        return
    }

    var newValue = window.prompt("Enter " + name + " Name")
    if (newValue === null) {
        return;
    }
    var child = document.createElement("option")
    child.value = newValue
    child.innerText = newValue
    el.prepend(child)
    el.value = newValue
}