function mostraMenu()
{
	var menu = mostraMenu.arguments;
	var objMenu;
	
	for( var i = 0; i < menu.length; i ++ )
	{
		//try{
			objMenu = document.getElementById(menu[ i ]);
			if ( objMenu )
			{
				objMenu.style.visibility = "visible";
				objMenu = document.getElementById(menu[ i ]+'Frame');
				objMenu.style.visibility = "visible";
			}
		//}catch(e)
		//{
			// nada!!
		//}
	}
}

function escondeMenu()
{
	var menu = escondeMenu.arguments;
	var objMenu;
	
	for( var i = 0; i < menu.length; i ++ )
	{
		objMenu = document.getElementById(menu[ i ]);
		if( objMenu )
		{
			objMenu.style.visibility = "hidden";
			objMenu = document.getElementById(menu[ i ]+'Frame');
			objMenu.style.visibility = "hidden";
		}
	}
}