function colora(elem) {
  elem.style.background='#F6F6F6';
  //elem.style.cursor='help'
}


function scolora(elem) {
  elem.style.background='#FFFFFF';
}


function aprichiudi(targetId)
{
  if (document.getElementById)
  {
	target = document.getElementById(targetId);
	if (target.style.display == "none")
	{
		target.style.display = "block";
	}
	else
	{
		target.style.display = "none";		
	}
  }
}