function showDiv(div_id)
{
	document.getElementById(div_id).style.display = "block";
}

function hideDiv(div_id)
{
	var div = document.getElementById(div_id);
	div.style.display = "none";
}

function toggleDiv(div_id)
{
	var div = document.getElementById(div_id);
	var displayState = div.style.display;
	
	if (displayState == "block")
	{
		div.style.display = "none";
	}
	else if (displayState == "none")
	{
		div.style.display = "block";
	}
}