diff --git a/assets/scripts/libs/main.js b/assets/scripts/libs/main.js
index a9713a6..52d0839 100644
--- a/assets/scripts/libs/main.js
+++ b/assets/scripts/libs/main.js
@@ -13,9 +13,21 @@ function promiseCb(funId, promiseFun, dataParser) {
 }
 /**
  * oauth login before init internal wallet
- * @param {*} channel 0: google, 1: apple, 2: tiktok, 3: facebook, 4: twitter 5: tg, 6: email, 7: discord 10: client
- * @param env: dev release
- * @param account guest account to bind
+ * @param {string} channel: 
+ *    0: google, 
+ *    1: apple, 
+ *    2: tiktok, 
+ *    3: facebook, 
+ *    4: twitter 
+ *    5: tg, 
+ *    6: email, 
+ *    7: discord 
+ *    10: client
+ * @param {string} env:       dev release
+ * @param {string} account:   guest account to bind
+ * @return {string} {token: string, address: string | null}
+ *    token: token for wallet services
+ *    address: address of wallet if already created (optional)
  */
 function walletLogin(funId, channel, env, account) {
   channel = parseInt(channel);
@@ -26,8 +38,11 @@ function walletLogin(funId, channel, env, account) {
 }
 /**
  * init internal wallet with password
- * @param {number | string} chain chain id
- * @param {string} pass
+ * @param {string} chain:  chain id
+ * @param {string} pass: password for wallet
+ * @param {string} env:    dev release
+ * @return {string} address
+ * @throws {Error} if password is wrong
  */
 function initInternalWallet(funId, chain, pass, env) {
   chain = parseInt(chain);
@@ -45,6 +60,7 @@ function verifyPassword(funId, pass) {
   promiseCb(funId, jc.wallet.verifyLocalPass(pass));
 }
 /**
+ * @Deprecated
  * init third party wallet
  * @param {number | string} chain chain id
  */
@@ -58,6 +74,16 @@ function initThirdPartyWallet(funId, chain, env) {
 
 /**
  * all chain list we supported
+ * @return {string} JSON string of 
+ *                  [{ name: string
+ *                    type: string
+ *                    rpc: string
+ *                    id: number
+ *                    network?: string
+ *                    symbol?: string
+ *                    explorerurl?: string
+ *                    decimals?: number
+ *                  }]
  */
 function chainList(funId) {
   try {
@@ -68,7 +94,17 @@ function chainList(funId) {
   }
 }
 /**
- * chain active
+ * current actived chain info
+ * @return {string} JSON string of
+ *                 { name: string
+ *                 type: string
+ *                 rpc: string
+ *                 id: number
+ *                 network?: string
+ *                 symbol?: string
+ *                 explorerurl?: string
+ *                 decimals?: number
+ *                 }
  */
 function currentChain(funId) {
   try {
@@ -79,7 +115,7 @@ function currentChain(funId) {
   }
 }
 /**
- * [BOTH]change chain
+ * change current actived chain
  */
 function changeChain(funId, chainId) {
   chainId = parseInt(chainId);
@@ -107,7 +143,7 @@ function getEthBalance(funId, account) {
  * send ETH from current account
  * @param {string} to: target account
  * @param {string} amount:
- * @param {number} estimate: 1: only estimate gas price
+ * @param {string} estimate: 0: execute; 1: only estimate gas price; default: 0
  */
 function sendEth(funId, to, amount, estimate) {
   estimate = (estimate || '0') | 0;
@@ -146,6 +182,10 @@ function erc20Balance(funId, address, account) {
 }
 /**
  * send ERC20 token to to
+ * @param {string} address: contract address of ERC20
+ * @param {string} to: target account
+ * @param {string} amount: amount of token to send
+ * @param {string} estimate: 0: execute; 1: only estimate gas price; default: 0
  */
 function sendErc20(funId, address, to, amount, estimate) {
   estimate = (estimate || '0') | 0;
@@ -154,6 +194,10 @@ function sendErc20(funId, address, to, amount, estimate) {
 
 /**
  * send ERC721 NFT to to
+ * @param {string} address: contract address of NFT
+ * @param {string} to: target account
+ * @param {string} tokenId: nft id of NFT
+ * @param {string} estimate: 0: execute; 1: only estimate gas price; default: 0
  */
 function sendErc721(funId, address, to, tokenId, estimate) {
   estimate = (estimate || '0') | 0;
@@ -172,9 +216,9 @@ function erc721Balance(funId, address, account, chainId) {
 
 /**
  * get balance of ERC1155
- * @param {string} address:
- * @param {string} account:
- * @param {string} tokenId:
+ * @param {string} address: contract address of NFT
+ * @param {string} account: wallet address
+ * @param {string} tokenId: nft id of NFT
  */
 function erc1155Balance(funId, address, account, tokenId) {
   promiseCb(funId, jc.wallet.erc1155Balance(address, account, tokenId));
@@ -182,6 +226,11 @@ function erc1155Balance(funId, address, account, tokenId) {
 
 /**
  * send ERC1155 to to
+ * @param {string} address: contract address of NFT
+ * @param {string} to: target account
+ * @param {string} tokenIds: nft id of NFT, json string of array
+ * @param {string} amounts: amount of token to send, json string of array
+ * @param {string} estimate: 0: execute; 1: only estimate gas price; default: 0
  */
 function sendErc1155(funId, address, to, tokenIds, amounts, estimate) {
   tokenIds = JSON.parse(tokenIds);
@@ -190,6 +239,10 @@ function sendErc1155(funId, address, to, tokenIds, amounts, estimate) {
   promiseCb(funId, jc.wallet.sendErc1155(address, to, tokenIds, amounts, estimate));
 }
 
+/**
+ * show QRCode for content
+ * @param {string} content: content to show
+ */
 function showQRCode(funId, content) {
   try {
     jsb.showQRCode(funId, content);
@@ -198,7 +251,11 @@ function showQRCode(funId, content) {
     return JSON.stringify({ errcode: 1, errmsg: err.message || err });
   }
 }
-
+/**
+ * show webpage
+ * don't call this when in web page
+ * @param {string} url: url to show
+ */
 function showWebPage(funId, url) {
   try {
     jsb.showWebPage(funId, url);
@@ -209,11 +266,19 @@ function showWebPage(funId, url) {
   }
 }
 
+/**
+ * show QRCode scaner
+ * @param {string} title: title of scaner
+ */
 function scanQRCode(funId, title) {
   console.log('scanQRCode: ' + title);
   promiseCb(funId, jc.wallet.nativeSvr.scanQRCode(title));
 }
 
+/**
+ * export wallet private key
+ * @param {string} pass: password of wallet
+ */
 function exportWalletSecKey(funId, pass) {
   try {
     let key = jc.wallet.exportPrivateKey(pass);
@@ -224,8 +289,18 @@ function exportWalletSecKey(funId, pass) {
 }
 
 // ======= begin of interact with contract =======
+/**
+ * mint NFT 
+ * @param {string} address: contract address of NFT 
+ * @param {string} tokenIds: token id of NFT, JSON string of string array
+ * @parsm {string} startTime: time of signature generation
+ * @param {string} saltNonce: nonce of signature
+ * @param {string} signature: signature
+ * @param {string} estimate: 1: only estimate gas price
+ */
 function mintNFT(funId, address, tokenIds, startTime, saltNonce, signature, estimate) {
   tokenIds = JSON.parse(tokenIds);
+  estimate = (estimate || '0') | 0;
   promiseCb(
     funId,
     jc.wallet.jcStandard.mintNFT({
@@ -242,8 +317,10 @@ function mintNFT(funId, address, tokenIds, startTime, saltNonce, signature, esti
 // ======= end of interact with contract =======
 // ======= begin of pay =======
 /**
- * crypto: 'CEC' or 'CEG', 'ETH'
- * address: wallet address of user
+ * begin buy crypto with alchemy
+ * @param {string} network: 'mainnet' or 'testnet'
+ * @param {string} crypto: 'CEC' or 'CEG', 'ETH'
+ * @param {string} address: wallet address of user
  * fiat: 'USD' or 'CNY'
  * fiatAmount: '100'
  * payWayCode: '10001'
@@ -287,17 +364,23 @@ function beginPay(
 // ======= end of pay =======
 // ======= begin of transaction history =======
 /**
- *
- * @param {*} funId
- * @param {*} start
- * @param {*} limit
- * @param {*} moreParam e.g. {timeBegin: 1655716867832, timeEnd: 1655716867832}
+ * query eth transaction history
+ * @param {string} start
+ * @param {string} limit
+ * @param {JSON string} moreParam e.g. {timeBegin: 1655716867832, timeEnd: 1655716867832}
  */
 function ethHistory(funId, start, limit, moreParam) {
   moreParam = moreParam ? JSON.parse(moreParam) : {};
   promiseCb(funId, jc.wallet.historySvr.ethRecords(start, limit, moreParam));
 }
-
+/**
+ * query token transaction history
+ * @param {string} start
+ * @param {string} limit
+ * @param {string} address
+ * @param {string} tokenId
+ * @param {JSON string} moreParam e.g. {timeBegin: 1655716867832, timeEnd: 1655716867832}
+ */
 function tokenHistory(funId, start, limit, address, tokenId, moreParam) {
   moreParam = moreParam ? JSON.parse(moreParam) : {};
   var data = { start, limit, address, tokenId };
@@ -313,8 +396,8 @@ function emailInfo(funId) {
 }
 /**
  * send code with email
- * @param {*} email
- * @param {*} type
+ * @param {string} email
+ * @param {string} type
  */
 function sendEmailCode(funId, email, type) {
   const wallet = !window.jc || !jc.wallet ? new jcwallet.default({ type: 0 }) : jc.wallet;
@@ -322,8 +405,8 @@ function sendEmailCode(funId, email, type) {
 }
 /**
  * verify email with code, and update email
- * @param {*} email
- * @param {*} code
+ * @param {string} email
+ * @param {string} code
  */
 function verifyEmail(funId, email, code) {
   promiseCb(funId, jc.wallet.emailVerifySvr.updateEmailVerify(email, code));
@@ -331,7 +414,7 @@ function verifyEmail(funId, email, code) {
 
 /**
  * check if email had already been registed
- * @param {*} email
+ * @param {string} email
  */
 function checkEmailExists(funId, email) {
   const wallet = !window.jc || !jc.wallet ? new jcwallet.default({ type: 0 }) : jc.wallet;
@@ -402,6 +485,9 @@ function getCryptoPriceOfUSD(funId, crypto, chain) {
 
 /**
  * format price
+ * @param {string} value
+ * @param {string} decimal: decimal of price
+ * @param {string} fixed: fixed of price
  */
 function formatPrice(funId, value, decimal, fixed) {
   try {
@@ -414,7 +500,17 @@ function formatPrice(funId, value, decimal, fixed) {
 
 // begin of market
 // begin sell nft with market
+/**
+ * sell nft with market
+ * @param {string} nftToken: address of nft token to sell
+ * @param {string} currency: address of currency
+ * @param {string} tokenId: token id of nft to sell
+ * @param {string} price: price of nft
+ * @param {string} amount: amount of nft to sell, must be 1 for ERC721
+ * @param {string} estimate: 0: execute; 1: only estimate gas price; default: 0
+ */
 function marketSellNFT(funId, nftToken, currency, tokenId, price, amount, estimate) {
+  estimate = (estimate || '0') | 0;
   promiseCb(
     funId,
     jc.wallet.jcStandard.marketSellNFT({
@@ -428,8 +524,14 @@ function marketSellNFT(funId, nftToken, currency, tokenId, price, amount, estima
     (v) => JSON.stringify(v)
   );
 }
-// update price of order
+/**
+ * update price of existed order
+ * @param {string} orderId: order id
+ * @param {string} price: new price
+ * @param {string} estimate: 0: execute; 1: only estimate gas price; default: 0
+ */
 function marketUpdatePrice(funId, orderId, price, estimate) {
+  estimate = (estimate || '0') | 0;
   promiseCb(
     funId,
     jc.wallet.jcStandard.marketUpdatePrice({
@@ -440,8 +542,13 @@ function marketUpdatePrice(funId, orderId, price, estimate) {
     (v) => JSON.stringify(v)
   );
 }
-// cancel order
+/**
+ * cancel order
+ * @param {string} orderId: order id
+ * @param {string} estimate: 0: execute; 1: only estimate gas price; default: 0
+ */
 function marketCancelOrder(funId, orderId, estimate) {
+  estimate = (estimate || '0') | 0;
   promiseCb(
     funId,
     jc.wallet.jcStandard.marketCancelOrder({
@@ -451,8 +558,14 @@ function marketCancelOrder(funId, orderId, estimate) {
     (v) => JSON.stringify(v)
   );
 }
-// buy order
+/**
+ * buy order
+ * @param {string} orderId: order id
+ * @param {string} price: price of order
+ * @param {string} estimate: 0: execute; 1: only estimate gas price; default: 0
+ */
 function marketBuy(funId, orderId, price, estimate) {
+  estimate = (estimate || '0') | 0;
   promiseCb(
     funId,
     jc.wallet.jcStandard.marketBuy({
@@ -463,8 +576,26 @@ function marketBuy(funId, orderId, price, estimate) {
     (v) => JSON.stringify(v)
   );
 }
-// buy item of game from market
+/**
+ * get order info from chain
+ * @param {string} orderId: order id
+ */
+function marketOrderInfo(funId, orderId) {
+  promiseCb(funId, jc.wallet.jcStandard.marketOrderInfo(orderId));
+}
+/**
+ * buy item of game from market
+ * @param {string} orderId: order id
+ * @param {string} seller: seller address
+ * @param {string} currency: address of currency
+ * @param {string} price: price of order
+ * @param {string} startTime: time for signature
+ * @param {string} saltNonce: nonce for signature
+ * @param {string} signature: signature
+ * @param {string} estimate: 0: execute; 1: only estimate gas price; default: 0
+ */
 function gameMarketBuy(funId, orderId, seller, currency, price, startTime, saltNonce, signature, estimate) {
+  estimate = (estimate || '0') | 0;
   promiseCb(
     funId,
     jc.wallet.jcStandard.gameMarketBuy({
@@ -480,15 +611,21 @@ function gameMarketBuy(funId, orderId, seller, currency, price, startTime, saltN
     (v) => JSON.stringify(v)
   );
 }
-// get order info from chain
-function marketOrderInfo(funId, orderId) {
-  promiseCb(funId, jc.wallet.jcStandard.marketOrderInfo(orderId));
-}
 // end of market
 
 // begin of mall
-// buy item of game from mall
+/**
+ * buy item of game from mall
+ * @param {string} orderId: order id
+ * @param {string} currency: address of currency
+ * @param {string} price: price of order
+ * @param {string} startTime: time for signature
+ * @param {string} saltNonce: nonce for signature
+ * @param {string} signature: signature
+ * @param {string} estimate: 0: execute; 1: only estimate gas price; default: 0
+ */
 function gameMallBuy(funId, orderId, currency, price, startTime, saltNonce, signature, estimate) {
+  estimate = (estimate || '0') | 0;
   promiseCb(
     funId,
     jc.wallet.jcStandard.gameMallBuy({
@@ -503,10 +640,24 @@ function gameMallBuy(funId, orderId, currency, price, startTime, saltNonce, sign
     (v) => JSON.stringify(v)
   );
 }
-// end of mall
 
-// begin of NFT mall
+/** 
+ *  buy nft from mall
+ *  @param {string} currency: address of currency
+ *  @param {string} addresses: address of nft token, JSON string of array
+ *  @param {string} ids: token id of nft, JSON string of array
+ *  @param {string} amounts: amount of nft, JSON string of array
+ *  @param {string} values: JSON string, e.g. [orderId, price, startTime, saltNonce]
+ *                    orderId: order id
+ *                    price: price of order
+ *                    startTime: time for signature
+ *                    saltNonce: nonce for signature
+ *  @param {string} signature: signature
+ *  @param {string} gas: gas price
+ *  @param {string} estimate: 0: execute; 1: only estimate gas price; default: 0
+ */
 function nftMallBuy(funId, currency, addresses, ids, amounts, values, signature, gas, estimate) {
+  estimate = (estimate || '0') | 0;
   addresses = JSON.parse(addresses);
   ids = JSON.parse(ids);
   amounts = JSON.parse(amounts);
@@ -527,11 +678,15 @@ function nftMallBuy(funId, currency, addresses, ids, amounts, values, signature,
   );
 }
 
-// end of NFT mall
-
-// begin of token mall
-// buy ceg with usdt, usdc
+/**
+ * buy ceg with usdt, usdc
+ * @param {string} currency: address of currency
+ * @param {string} amount: amount of currency
+ * @param {string} gas: gas price
+ * @param {string} estimate: 0: execute; 1: only estimate gas price; default: 0
+ */ 
 function buyTokenWithErc20(funId, currency, amount, gas, estimate) {
+  estimate = (estimate || '0') | 0;
   promiseCb(
     funId,
     jc.wallet.jcStandard.buyTokenWithErc20({
@@ -542,9 +697,13 @@ function buyTokenWithErc20(funId, currency, amount, gas, estimate) {
     (v) => JSON.stringify(v)
   );
 }
-// begin of token mall
+// end of mall
 
 // begin of in-app pay
+/**
+ * query google or ios products with product ids
+ * @param {string} productIds: product id for query, JSON string of array
+ */
 function queryGoogleProducts(funId, productIds) {
   let ids = JSON.parse(productIds);
   console.log('queryGoogleProducts:: ' + productIds);
@@ -554,7 +713,9 @@ function queryGoogleProducts(funId, productIds) {
     promiseCb(funId, jc.wallet.paySvr.queryIOSProducts(ids));
   }
 }
-
+/**
+ * query google or ios purchases unfinished
+ */
 function queryGooglePurchases(funId) {
   if (window.JavascriptJavaBridge) {
     promiseCb(funId, jc.wallet.paySvr.queryGooglePurchases());
@@ -562,7 +723,11 @@ function queryGooglePurchases(funId) {
     promiseCb(funId, jc.wallet.paySvr.queryIOSPurchases());
   }
 }
-
+/**
+ * begin google or ios pay
+ * @param {string} productId: product id
+ * @param {string} orderId: order id
+ */
 function beginGoogleBuy(funId, productId, orderId) {
   if (window.JavascriptJavaBridge) {
     promiseCb(funId, jc.wallet.paySvr.buyGoogleProduct(productId, orderId));
@@ -573,7 +738,16 @@ function beginGoogleBuy(funId, productId, orderId) {
 // end of in-app pay
 
 // begin of staking
+/**
+ * stake nft
+ * @param {string} nfts: address of nft token, JSON string of array
+ * @param {string} tokenIds: token id of nft, JSON string of array
+ * @param {string} staketimes: staking time of nft, JSON string of array
+ * @param {string} gas: gas price
+ * @param {string} estimate: 0: execute; 1: only estimate gas price; default: 0
+ */
 function stakeNfts(funId, nfts, tokenIds, staketimes, gas, estimate) {
+  estimate = (estimate || '0') | 0;
   nfts = JSON.parse(nfts);
   tokenIds = JSON.parse(tokenIds);
   staketimes = JSON.parse(staketimes);
@@ -581,30 +755,56 @@ function stakeNfts(funId, nfts, tokenIds, staketimes, gas, estimate) {
     JSON.stringify(v)
   );
 }
-
+/**
+ * redeem nft
+ * @param {string} nfts: address of nft token, JSON string of array
+ * @param {string} tokenIds: token id of nft, JSON string of array
+ * @param {string} gas: gas price
+ * @param {string} estimate: 0: execute; 1: only estimate gas price; default: 0
+ */
 function redeemNfts(funId, nfts, tokenIds, gas, estimate) {
+  estimate = (estimate || '0') | 0;
   nfts = JSON.parse(nfts);
   tokenIds = JSON.parse(tokenIds);
   promiseCb(funId, jc.wallet.jcStandard.redeemNfts({ nfts, tokenIds, gas, estimate }), (v) => JSON.stringify(v));
 }
 
+/**
+ * query nft stake info
+ * @param {string} nft: address of nft token
+ * @param {string} tokenId: token id of nft
+ */
 function nftStakeInfo(funId, nft, tokenId) {
   promiseCb(funId, jc.wallet.jcStandard.nftStakeInfo({ nft, tokenId }));
 }
 // end of staking
 
+/**
+ * delete account
+ * delete account will delete game data for current account
+ * wallet for current account will be remained
+ */
 function deleteAccount(funId) {
   promiseCb(funId, jc.wallet.deleteAccount());
 }
-
+/**
+ * reset wallet address for current account
+ */
 function resetWalletAddress(funId) {
   promiseCb(funId, jc.wallet.resetWalletAddress());
 }
-
+/**
+ * storage pass with google drive
+ * @param {string} key: current account address 
+ * @param {string} val: pass for current account
+ */
 function storePassLocal(funId, key, val) {
   promiseCb(funId, jc.wallet.nativeSvr.storagePass(key, val));
 }
-
+/**
+ * restore pass from google drive
+ * @param {string} key: current account address
+ */
 function restorePassLocal(funId, key) {
   promiseCb(funId, jc.wallet.nativeSvr.authGetStoragePass(key));
 }