var menuitem = 0;

function show(id)
{
	document.getElementById(id).style.display = "";
	document.getElementById("background").style.display = "";
	document.body.style.overflow = "hidden";
	document.html.style.overflow = "hidden";
}

function hide()
{
	document.getElementById("img1").style.display = "none";
	document.getElementById("img2").style.display = "none";
	document.getElementById("img3").style.display = "none";
	document.getElementById("img4").style.display = "none";
	document.getElementById("img5").style.display = "none";
	document.getElementById("img6").style.display = "none";
	document.getElementById("img7").style.display = "none";
	document.getElementById("background").style.display = "none";
	document.body.style.overflow = "auto";
	document.html.style.overflow = "auto";
}

function mopen(id)
{
	if(menuitem)
	{
		menuitem.style.visibility = 'hidden';
	}
	menuitem = document.getElementById(id);
	menuitem.style.visibility = 'visible';
}

function mclose()
{
	if(menuitem)
	{
		menuitem.style.visibility = 'hidden';
	}
}
			
document.onclick = mclose;