function calculate() {
                var investSum = $('#investSum').val();
                if (investSum != '' && !isNaN(parseInt(investSum))) {
                    $('#divInvest').hide();
                    $('#progressing').show();
                    $('#divFinalDeposit').hide();
                    $('#userInvestSum').html(investSum);
                    var currency = $('#currency').val();
                    $('#depositCurrency').html(currency);
                    $('#sumCurrency').html(currency);
                    $.post(
                        '/calculate.php',
                        'investSum=' + investSum + '&currency=' + currency,
                        function(result) {
                            $('#finalDeposit').hide();
                            setTimeout(function() {
                                $('#progressing').hide();
                                $('#finalDeposit').show();
                                $('#divFinalDeposit').show();
                            }, 1000);
                            $('#finalDeposit').html(result);
                        }
                    )
                }
            }
            function showDivInvest() {
                $('#investSum').val('');
                $('#divInvest').show();
                $('#divFinalDeposit').hide();
            }
            $(function () {
                $('#finalDeposit').cluetip({
                    activation: 'click', 
                    splitTitle: '|', 
                    sticky: true,
                    closePosition: 'title',
                    closeText: '<img src="images/close.gif" alt="" />',
                    cluetipClass: 'calck_hover',
                    positionBy:'bottomTop',
                    topOffset:-50
                });
            });