function changeFullDayOptions(fulldayoptions,changefullday)
{
  var the_styleFullDay = getStyleObjectFullDay(fulldayoptions);
  if (the_styleFullDay != false)
  {
    the_styleFullDay.display = changefullday;
  }
}

function hideFullDayOptions()
{
  changeFullDayOptions("fulldaycheck","none");
}


function getStyleObjectFullDay(objectFullDayId) {
  if (document.getElementById && document.getElementById(objectFullDayId)) {
    return document.getElementById(objectFullDayId).style;
  } else if (document.all && document.all(objectFullDayId)) {
    return document.all(objectFullDayId).style;
  } else {
    return false;
  }
}