function blocking(tag)
{
	if (document.getElementById) //  Netscape, Mozilla, etc. 
	{
		var state = document.getElementById(tag).style.display;
	}
	else if (document.all)      //  IE, Konqueror, etc.
	{
		var state = document.all[tag].style.display;
	}

	var newState = "";

	if ( state == "block")
	{
		newState = "none";
	} else {
		newState = "block";
	}
	if (document.getElementById)
	{
		document.getElementById(tag).style.display = newState;
	}
	else if (document.all)
	{
		document.all[tag].style.display = newState;
	}
}

function blockingall(tag)	{
	if (document.getElementById)	{
		var state = document.getElementById(tag).style.display;		}
	else if (document.all)	{
		var state = document.all[tag].style.display;	}
	var newState = "block";
	if (document.getElementById)	{
		document.getElementById(tag).style.display = newState;	}
	else if (document.all)	{
		document.all[tag].style.display = newState;	}
}

function hidingall(tag)	{
	if (document.getElementById)	{
		var state = document.getElementById(tag).style.display;		}
	else if (document.all)	{
		var state = document.all[tag].style.display;	}
	var newState = "none";
	if (document.getElementById)	{
		document.getElementById(tag).style.display = newState;	}
	else if (document.all)	{
		document.all[tag].style.display = newState;	}
}