function hMenu(myElement)
{
  document.getElementById(myElement).style.visibility = "hidden";
  bMenu_Visible=false;
}


var bMenu_Visible = false;

function sMenu(id)
{
	
	if(bMenu_Visible==false)
	{
		document.getElementById(id).style.visibility="visible";
		bMenu_Visible=true;
	}
	else
	{
		document.getElementById(id).style.visibility="hidden";
		bMenu_Visible=false;
	}
}