function setValue(elementName, data) {
    var elem = document.getElementById(elementName);
    elem.value = data;
}

function setInnerText(elementName, data) {
    var elem = document.getElementById(elementName);
    elem.innerText = data;
}

function getInnerText(elementName) {
    var elem = document.getElementById(elementName);
    return elem.innerText;
}

function getValue(elementName) {
    var elem = document.getElementById(elementName);
    return elem.value;
}

function setWalletUnlockPassword(pwd) {
    setValue("ID_WalletUnlockPwd", pwd);
}

function getWalletUnlockPassword() {
    return getValue("ID_WalletUnlockPwd");
}

function setWalletReceiveAddress(address) {
    setInnerText("ID_WalletReceiveAddress", address);
}

function getWalletReceiveAddress() {
    return getInnerText("ID_WalletReceiveAddress");
}

function setWalletTotalBalance(balance) {
    setInnerText("ID_WalletTotalBalance", balance);
}

function setWalletConfirmedBalance(balance) {
    setInnerText("ID_WalletConfirmedBalance", balance);
}

function setWalletUnconfirmedBalance(balance) {
    setInnerText("ID_WalletBalanceUnconfirmed", balance);
}

function setClientVersion(version) {
    setInnerText("ID_ClientVersion", version);
}

function setServerVersion(version) {
    setInnerText("ID_ServerVersion", version);
}

function setAvailableDrives(driveList) {
    driveList = Array.isArray(driveList) ? driveList : JSON.parse(driveList);

    var sel = document.getElementById("MountDrives");
    sel.innerHTML = "";

    for (var i in driveList) {
        if (driveList.hasOwnProperty(i)) {
            var drive = driveList[i];
            var option = document.createElement("option");
            option.innerText = drive + ":";
            sel.appendChild(option);
        }
    }
}