function object_visible_toggle( id )
{
	var object = document.getElementById( id );

	if( object.style.display == "none" )
	{
		object.style.display = "";
	}
	else
	{
		object.style.display = "none";
	}
}

// Set the image button functions
function Set_Menu_images( name )
{
	// preload active image
	preload_image_object = new Image();
	preload_image_object.src = "images/menu/" + name + "_active.png";
	
	var button = document.getElementById( name + "_button" );
	
	button.onmouseover = function()
	{
		button.src = "images/menu/" + name + "_active.png";
	}
	
	button.onmouseout = function()
	{
		var menu = document.getElementById( "menu_" + name );

		if( !menu || menu.style.display == "none" )
		{
			button.src = "images/menu/" + name +"_disabled.png";
		}
	}
}