function menu(menu)
{
	if (menu == "login")
	{
		if (document.getElementById("login").style.display == "none")
			document.getElementById("login").style.display = "block";
		else
			document.getElementById("login").style.display = "none";
	}
 	else
		document.getElementById("menu" + menu).style.display = "block";	
}

function menuOff(menu)
{
	document.getElementById("menu" + menu).style.display = "none";
}

function menuReset(menu)
{
	document.getElementById(menu).style.display = "none";
}

function closeCalc()
{
	document.getElementById('body_cover').style.display='none';
	document.getElementById('calc').style.display='none';
	document.getElementById('flash').style.visibility='visible';
	document.getElementById('sidebar').style.visibility='visible';
}