SQL Server 2012 AlwaysOn: need to automatically add databases by script- T-sql or PowerShell

Question

I've installed and successfully configured our SQL Server 2012 AlwaysOn 2-node servers for our new "Intranet" that is coming out. I've gotten AlwaysOn working great, and our Front End servers for the Intranet will be using SharePoint 2013. The glitch is that SharePoint 2013 is configured to add databases automatically to our SQL Server 2012 back end, but NOT to AlwaysOn. In reading about this and in contacting Microsoft MSDN support, the default answer is "you must manually find, select, back-up and then add those new databases individually to get them into AlwaysOn."

But wait; that can be quite a task, constantly checking the SQL Server back-end servers to see what databases were created, then having to add them into AlwaysOn, 7/24! I'm looking for a script or process that will check for new databases, back those new databases up in FULL mode, (for being added to AlwaysOn, of course) then add those databases to AlwaysOn, all automatically. Or have this run every...1-2 hours? (without user intervention)

What I've come up with so far is this script that actually identifies the newly-added databases, (not yet in AlwaysOn), and then backs them up to a shared location. My next task is to find those newly-added databases and through the various processes needed, get them added to AlwaysOn. This will involve some sort of looping action, I imagine. I'm not a T-SQL/scripting guru; is there any solution or script that I might access that would do this? (add databases to AlwaysOn automatically)?

Please advise, I'm sure I'm not the first person to have this issue. I have seen previous posts on various Internet Sites (including this one!) , and the solution is either incorrect, or states something like "sure, go ahead and just script that!". Thanks, but I need just a little more detail there.

Thanks again,

-Allen

DECLARE @name VARCHAR(50) -- database name  
DECLARE @path VARCHAR(256) -- path for backup files  
DECLARE @fileName VARCHAR(256) -- filename for backup  

-- specify database backup directory
SET @path = '\\atel-web-be2\backups\'  

DECLARE db_cursor CURSOR FOR  
select name from sys.databases
where group_database_id is null and replica_id is null 
    and name not in('master','model','msdb','tempdb')

OPEN db_cursor   
FETCH NEXT FROM db_cursor INTO @name   
WHILE @@FETCH_STATUS = 0   
BEGIN   
    SET @fileName = @path + @name + '.BAK'  
    BACKUP DATABASE @name TO DISK = @fileName   
    FETCH NEXT FROM db_cursor INTO @name   
END 

CLOSE db_cursor   
DEALLOCATE db_cursor