function multiply(){
        var current = $('#double_your_btc_stake').val();
        var multiply = (current * 2).toFixed(8);
        $('#double_your_btc_stake').val(multiply);
}
function getRandomWait(){
        var wait = Math.floor(Math.random() * maxWait ) + 100;
        console.log('Waiting for ' + wait + 'ms before next bet.');
        return wait ;