Set default err503File variable to 503.html in scriptPath

backup.sh

@@ -133,6 +133,10 @@ function cleanup {
 scriptPath="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 scriptName="$( basename ${0} )"
 logFile="$scriptPath/${scriptName%.*}.log"
+
+# set default 503 error page name and location in scriptPath
+err503File="$scriptPath/503.html"
+
 # set borg parameters to 'normal' verbosity
 borgCreateParams='--stats'
 borgPruneParams='--list'
@@ -141,7 +145,6 @@ borgPruneParams='--list'
 ### Set script parameters to null and initialize array variables
 unset PARAMS
 unset sqlDumpDir
-unset err503File
 unset webroot
 unset ncRoot
 errorExplain=()