var preSumBalance = 0
var initSumBalance = 0
function UpdateAccount(isFirst){
    var msg = ""
    var sumStocks = 0
    var sumBalance = 0
    for(var i = 0; i < exchanges.length; i++){
        if(exchanges[i].needUpdate == true || isFirst == true){
            exchanges[i].account = _C(exchanges[i].GetAccount)
            exchanges[i].needUpdate = false
            if(isFirst == true){
                initSumBalance += (exchanges[i].account.Balance + exchanges[i].account.FrozenBalance)