function facebook_prompt_permission(permission) 
{
	FB.ensureInit(function() 
	{
		FB.Connect.showPermissionDialog(permission);
	});
}

function facebook_requestSession() 
{
	if (!bburl || bburl == null)
		var loginurl = 'fblogin.php';
	else
		var loginurl = bburl + '/fblogin.php';
		
	FB.ensureInit(function() 
	{ 
		FB.Connect.ifUserConnected(loginurl, function ()
		{
			FB.Connect.requireSession(function ()
			{
				document.location = loginurl;
			});
		});		 
	});
}