function initFB() {
	FB_RequireFeatures(["XFBML"], function() {
			FB.init("aab26942c3244ad3185bbc6ce402e4ad", "/xd_receiver.htm", {"forceBrowserPopupForLogin":false});
			//alert(FB.users_hasAppPermission('email', null));
		}
	);
}

function doLogout() {
	window.location='/logout.php';
    /*
	if (FB.Connect.get_loggedInUser()==null) {
		window.location='/logout.php';
	} else {
		FB.Connect.logoutAndRedirect('/logout.php');
	}
    */
}

function permissionHandler(perms) {
	if (!perms) {
		// no permissions
	} else {
		// permissions
	}
	window.location.reload();
}

function getFBEmail(callback) {
	FB.ensureInit(function () {
		FB.Facebook.get_sessionState().waitUntilReady(function() {
			FB.Connect.showPermissionDialog('email', callback);
		   }
		)
		}
	)
}