function DateTimePickerToggleTime(id)
{
    var isVisible = (document.getElementById(id + '_hour').style.visibility == '');
    
    var newStyle = (isVisible ? 'hidden' : '');
    
    document.getElementById(id + '_hour').style.visibility = newStyle;
    document.getElementById(id + '_colon1').style.visibility = newStyle;
    document.getElementById(id + '_minute').style.visibility = newStyle;
    document.getElementById(id + '_colon2').style.visibility = newStyle;
    document.getElementById(id + '_amPm').style.visibility = newStyle;
}