// JavaScript Document
var disp = "";
function showSub(d)
{
	if (d == "")
	{
		d = disp;
	}
	
	var dv = document.getElementById(d)
	if (disp == "")
	{
		dv.style.display = "block";
		disp = d;
	}
	else if (disp == d)
	{
		dv.style.display = "none";
		disp = "";
	}
	else
	{
		var dx = document.getElementById(dispDiv);
		dx.style.display = "none";
		dv.style.display = "block";
		disp = d;
	}
	//alert(dispDiv);
}