function temporalRange(enableRange)
{
    // load toDate widgets
    var month = document.getElementById('search_toDate_month');
    var day = document.getElementById('search_toDate_day');
    var year =  document.getElementById('search_toDate_year');
    var hour =  document.getElementById('search_toDate_hour');
    var min =  document.getElementById('search_toDate_minute');

    if (enableRange)
    {
        // set disabled = false
        month.disabled = false;
        day.disabled = false;
        year.disabled = false;
        hour.disabled = false;
        min.disabled = false;
    }
    else
    {
        // set disabled = disabled
        month.disabled = true;
        day.disabled = true;
        year.disabled = true;
        hour.disabled = true;
        min.disabled = true;

        // clear values
        month.value = '';
        day.value = '';
        year.value = '';
        hour.value = '';
        min.value = '';
    }
}