function CloseDialog()
{
 o = document.getElementById('overlay');
 d = document.getElementById('dlg');
 o.style.visibility = "hidden";
 d.style.visibility = "hidden";
}

function OpenDialog(cCaptionId,cCaption,cTextId,cText)
{
	
  o = document.getElementById('overlay');
  d = document.getElementById('dlg');
  o.style.visibility = "visible";
  d.style.visibility = "visible";
  document.getElementById(cCaptionId).innerHTML=cCaption;
  document.getElementById(cTextId).innerHTML=cText;
}