function openMenu(id, close)
{
	button = document.getElementById(id+'_button');
	image = document.getElementById(id+'_image');
	menu = document.getElementById('submenu-'+id);

	if (!button || !image)
		return;

	if (close)
	{
		if (close != "fixed")
		{
			button.style.backgroundImage = 'url(/img/topmenu_off.gif)';
			image.src = '/img/'+id+'_off.jpg';
		}
		if (menu)
			menu.style.display = 'none';
	}
	else
	{
		image.src = '/img/'+id+'_over.jpg';
		button.style.backgroundImage = 'url(/img/topmenu_over.gif)';
		if (menu)
			menu.style.display = 'block';
	}
}