var dtCurDate;
function Picker_ValueChanged(oDropDown, newValue, oEvent) {
    if (dtCurDate != document.getElementById('ctl00_CenterColumn_dtArrivalDate_input').value) {
        dtCurDate = document.getElementById('ctl00_CenterColumn_dtArrivalDate_input').value;
        var bIsDate = true;
        if (dtCurDate != '') {
            try {
                var dtNewDate = new Date(dtCurDate);
                if (isNaN(dtNewDate)) {
                    bIsDate = false;
                }
            }
            catch (err) {
                bIsDate = false;
            }
        }

        if (bIsDate == true) {
            document.getElementById('trRentalRatePeriodID').style.display = '';
        }
        else {
            document.getElementById('trRentalRatePeriodID').style.display = 'none';
        }
    }
}

function RentalRatePeriodChanged() {
    if (document.getElementById('ctl00_CenterColumn_cboRentalRatePeriodID').options.selectedIndex > 0) {
        document.getElementById('trPriceRange').style.display = '';
    } else {
        document.getElementById('trPriceRange').style.display = 'none';
    }

}

function kp(evt) {
    var key = window.event ? evt.keyCode : evt.which;
    if (key == "13") {
        return false;
    }
}