//modifica lo stile del link in un box
function emphLink(idLink, action)
{
	if(action)
	{
		$(idLink).style.fontWeight = 'bold';	
	}
	else
	{
		$(idLink).style.fontWeight = 'normal';	
	}
}

//sottolinea regione in rosso
function displayRegione(img, action, container)
{
	switch(action)
	{
		case 'display':
			$(container).appendChild(img);
			return true;
		break;
		case 'remove':
			$(container).removeChild(img);
		break;
	}
}