LinuxQuestions.org - Bash looping or function within a function

Hello, I have a script that will go to a backup server and check for a backup server for a specific domain. This is all within a specific function, the thing is, if for some reason the backup does not exist on that backup server, I want it to ask the user if they want to try a different backup server, read the input and go back to the section within the function where it asks for the server and goes from there. I tried a while loop but that breaks the script, and I also do not want to make another function with the same code in it as it gets too confusing then. How can I do this without making it too complex? Here is the section of the code. Remember, this code is inside of a function:

Code:

echo ""

                echo "[Backup Servers]"

                echo "----------------------------------------------------------------"

                grep -ilR $host /root/server_backupserver/cron/ | cut -d. -f2

        while [ ! $server ]

        do

                        echo "----------------------------------------------------------------"

                        echo -n "Pick a Backup Server: "

                        read server

                        echo "----------------------------------------------------------------"

        done

                homedir=$(ssh $server crontab -l | grep $host | rev | cut -d\  -f 2 | rev)

                exist1=`ssh $server "ls $homedir/$host/home/ | grep -c $username"`



                if [ $exist1 -ge 1 ]

                then

                        echo ""

                        echo "[Restore Dates]"

                        echo "----------------------------------------------------------------"

                        ssh $server "rdiff-backup -l $homedir/$host/home/$username"

                while [ ! $date ]

                do

                                echo "----------------------------------------------------------------"

                                echo -n "Pick a Restore (incremental): "

                                read date

                                echo "----------------------------------------------------------------"

                done

                        ssh $server "rdiff-backup --force -v5 $homedir/$host/home/$username/rdiff-backup-data/$date $host::/home/$username"

                else

                        echo ""

                        echo "----------------------------------------------------------------"

                        echo "Error: Backup for $username does not exist on $server. Do you want to try an alternate server?"

                        echo " 1) Yes "

                        echo " 2) No "

                        echo "----------------------------------------------------------------"

                        echo -n "Enter Option: "

                        read alt1

                fi

See, at the bottom I want it to read alt1 and go to a specified point, while loop doesn't seem to work and errors out. Maybe I can use goto, I know it's not recommended, but can someone show how if this is the only option. Thanks for the help.