function OnChecks()
{
   OnCheckPOV();
   OnCheckHAV();
}

function OnCheckPOV()
{
   var bPOV = document.getElementById("CheckPOV").checked;
   var oPOV = document.getElementById("POV");
   if (bPOV)
   {
      oPOV.style.visibility = "visible";
      oPOV.style.display = "block";
   }
   else
   {
      oPOV.style.visibility = "hidden";
      oPOV.style.display = "none";
   }
}

function OnCheckHAV()
{
   var bHAV = document.getElementById("CheckHAV").checked;
   var oHAV = document.getElementById("HAV");
   if (bHAV)
   {
      oHAV.style.visibility = "visible";
      oHAV.style.display = "block";
   }
   else
   {
      oHAV.style.visibility = "hidden";
      oHAV.style.display = "none";
   }
}