PowerShell to Backup SQL Database

I have the following code to back up a SQL Server database that works like a charm. The only problem is, it has been running all along with integrated security. The script is being pushed to a new server the database connection will be with SQL Server authorization (UserID and password).

I have two PoSh variables named $UserID and $Password. How would I integrate that into the following script to pass those credentials along?
function BackupDatabase($step, $server, $database)
	$s = new-object ("Microsoft.SqlServer.Management.Smo.Server") $server

	$bkdir = $s.Settings.BackupDirectory
	$dbname = $database
	$backupFileName = $bkdir + "\" + $dbname + "_" + $step + "_" + $now + ".bak"
	Write-Host "$step Conversion backup."
	Write-Host "Backing up the [$dbname] database to $backupFileName"
	$dbBackup = new-object ("Microsoft.SqlServer.Management.Smo.Backup")
	$dbBackup.Action = "Database"
	$dbBackup.Database = $dbname
	$dbBackup.CompressionOption = 1
	$dbBackup.CopyOnly = $TRUE
	$dbBackup.Devices.AddDevice($backupFileName, "File")
	return $?

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dbbishopAuthor Commented:
Got it to work. Thx.
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