diff --git a/dev/debug_osync.sh b/dev/debug_osync.sh
index 48d0c3b..3df3165 100755
--- a/dev/debug_osync.sh
+++ b/dev/debug_osync.sh
@@ -4,7 +4,7 @@ PROGRAM="osync" # Rsync based two way sync engine with fault tolerance
 AUTHOR="(C) 2013-2016 by Orsiris de Jong"
 CONTACT="http://www.netpower.fr/osync - ozy@netpower.fr"
 PROGRAM_VERSION=1.2-beta2
-PROGRAM_BUILD=2016102101
+PROGRAM_BUILD=2016102102
 IS_STABLE=no
 
 # Execution order						#__WITH_PARANOIA_DEBUG
@@ -45,7 +45,7 @@ IS_STABLE=no
 
 #### MINIMAL-FUNCTION-SET BEGIN ####
 
-## FUNC_BUILD=2016102101
+## FUNC_BUILD=2016102102
 ## BEGIN Generic bash functions written in 2013-2016 by Orsiris de Jong - http://www.netpower.fr - ozy@netpower.fr
 
 ## To use in a program, define the following variables:
@@ -917,19 +917,20 @@ function IsNumericExpand {
 	local re="^-?[0-9]+([.][0-9]+)?$"
 
 	if [[ $value =~ $re ]]; then
-		echo 1
+		echo 1 && return 1
 	else
-		echo 0
+		echo 0 && return 0
 	fi
 }
 
+# Usage [ $(IsNumeric $var) -eq 1 ]
 function IsNumeric {
 	local value="${1}"
 
 	if [[ $value =~ ^[0-9]+([.][0-9]+)?$ ]]; then
-		echo 1
+		echo 1 && return 1
 	else
-		echo 0
+		echo 0 && return 0
 	fi
 }
 
@@ -937,9 +938,9 @@ function IsInteger {
 	local value="${1}"
 
 	if [[ $value =~ ^[0-9]+$ ]]; then
-		echo 1
+		echo 1 && return 1
 	else
-		echo 0
+		echo 0 && return 0
 	fi
 }
 
@@ -973,13 +974,13 @@ arrayContains () {
 	local e
 
 	if [ "$2" == "" ]; then
-		echo 1 && return 1
+		echo 0 && return 0
 	fi
 
 	for e in "${@:2}"; do
-		[[ "$e" == "$1" ]] && echo 0 && return 0
+		[[ "$e" == "$1" ]] && echo 1 && return 1
 	done
-	echo 1 && return 1
+	echo 0 && return 0
 }
 
 function GetLocalOS {
@@ -1714,7 +1715,7 @@ function CheckCurrentConfigAll {
 		exit 1
 	fi
 
-	if [ "$SKIP_DELETION" != "" ] && [ $(arrayContains "${INITIATOR[$__type]}" "${SKIP_DELETION[@]}") -ne 0 ] && [ $(arrayContains "${TARGET[$__type]}" "${SKIP_DELETION[@]}") -ne 0 ]; then
+	if [ "$SKIP_DELETION" != "" ] && [ $(arrayContains "${INITIATOR[$__type]}" "${SKIP_DELETION[@]}") -eq 0 ] && [ $(arrayContains "${TARGET[$__type]}" "${SKIP_DELETION[@]}") -eq 0 ]; then
 		Logger "Bogus skip deletion parameter." "CRITICAL"
 		exit 1
 	fi
@@ -2715,7 +2716,7 @@ function deletionPropagation {
 	#TODO: deletionPropagation replicaType = source replica whereas _deleteXxxxxx replicaType = dest replica
 
 	if [ "$replicaType" == "${INITIATOR[$__type]}" ]; then
-		if [ $(arrayContains "${INITIATOR[$__type]}" "${SKIP_DELETION[@]}") -ne 0 ]; then
+		if [ $(arrayContains "${INITIATOR[$__type]}" "${SKIP_DELETION[@]}") -eq 0 ]; then
 			replicaDir="${INITIATOR[$__replicaDir]}"
 			deleteDir="${INITIATOR[$__deleteDir]}"
 
@@ -2729,7 +2730,7 @@ function deletionPropagation {
 			Logger "Skipping deletion on replica $replicaType." "NOTICE"
 		fi
 	elif [ "$replicaType" == "${TARGET[$__type]}" ]; then
-		if [ $(arrayContains "${TARGET[$__type]}" "${SKIP_DELETION[@]}") -ne 0 ]; then
+		if [ $(arrayContains "${TARGET[$__type]}" "${SKIP_DELETION[@]}") -eq 0 ]; then
 			replicaDir="${TARGET[$__replicaDir]}"
 			deleteDir="${TARGET[$__deleteDir]}"
 
diff --git a/osync.sh b/osync.sh
index b65007c..8c03d71 100755
--- a/osync.sh
+++ b/osync.sh
@@ -4,14 +4,14 @@ PROGRAM="osync" # Rsync based two way sync engine with fault tolerance
 AUTHOR="(C) 2013-2016 by Orsiris de Jong"
 CONTACT="http://www.netpower.fr/osync - ozy@netpower.fr"
 PROGRAM_VERSION=1.2-beta2
-PROGRAM_BUILD=2016102101
+PROGRAM_BUILD=2016102102
 IS_STABLE=no
 
 
 
 #### MINIMAL-FUNCTION-SET BEGIN ####
 
-## FUNC_BUILD=2016102101
+## FUNC_BUILD=2016102102
 ## BEGIN Generic bash functions written in 2013-2016 by Orsiris de Jong - http://www.netpower.fr - ozy@netpower.fr
 
 ## To use in a program, define the following variables:
@@ -851,19 +851,20 @@ function IsNumericExpand {
 	local re="^-?[0-9]+([.][0-9]+)?$"
 
 	if [[ $value =~ $re ]]; then
-		echo 1
+		echo 1 && return 1
 	else
-		echo 0
+		echo 0 && return 0
 	fi
 }
 
+# Usage [ $(IsNumeric $var) -eq 1 ]
 function IsNumeric {
 	local value="${1}"
 
 	if [[ $value =~ ^[0-9]+([.][0-9]+)?$ ]]; then
-		echo 1
+		echo 1 && return 1
 	else
-		echo 0
+		echo 0 && return 0
 	fi
 }
 
@@ -871,9 +872,9 @@ function IsInteger {
 	local value="${1}"
 
 	if [[ $value =~ ^[0-9]+$ ]]; then
-		echo 1
+		echo 1 && return 1
 	else
-		echo 0
+		echo 0 && return 0
 	fi
 }
 
@@ -907,13 +908,13 @@ arrayContains () {
 	local e
 
 	if [ "$2" == "" ]; then
-		echo 1 && return 1
+		echo 0 && return 0
 	fi
 
 	for e in "${@:2}"; do
-		[[ "$e" == "$1" ]] && echo 0 && return 0
+		[[ "$e" == "$1" ]] && echo 1 && return 1
 	done
-	echo 1 && return 1
+	echo 0 && return 0
 }
 
 function GetLocalOS {
@@ -1581,7 +1582,7 @@ function CheckCurrentConfigAll {
 		exit 1
 	fi
 
-	if [ "$SKIP_DELETION" != "" ] && [ $(arrayContains "${INITIATOR[$__type]}" "${SKIP_DELETION[@]}") -ne 0 ] && [ $(arrayContains "${TARGET[$__type]}" "${SKIP_DELETION[@]}") -ne 0 ]; then
+	if [ "$SKIP_DELETION" != "" ] && [ $(arrayContains "${INITIATOR[$__type]}" "${SKIP_DELETION[@]}") -eq 0 ] && [ $(arrayContains "${TARGET[$__type]}" "${SKIP_DELETION[@]}") -eq 0 ]; then
 		Logger "Bogus skip deletion parameter." "CRITICAL"
 		exit 1
 	fi
@@ -2555,7 +2556,7 @@ function deletionPropagation {
 	#TODO: deletionPropagation replicaType = source replica whereas _deleteXxxxxx replicaType = dest replica
 
 	if [ "$replicaType" == "${INITIATOR[$__type]}" ]; then
-		if [ $(arrayContains "${INITIATOR[$__type]}" "${SKIP_DELETION[@]}") -ne 0 ]; then
+		if [ $(arrayContains "${INITIATOR[$__type]}" "${SKIP_DELETION[@]}") -eq 0 ]; then
 			replicaDir="${INITIATOR[$__replicaDir]}"
 			deleteDir="${INITIATOR[$__deleteDir]}"
 
@@ -2569,7 +2570,7 @@ function deletionPropagation {
 			Logger "Skipping deletion on replica $replicaType." "NOTICE"
 		fi
 	elif [ "$replicaType" == "${TARGET[$__type]}" ]; then
-		if [ $(arrayContains "${TARGET[$__type]}" "${SKIP_DELETION[@]}") -ne 0 ]; then
+		if [ $(arrayContains "${TARGET[$__type]}" "${SKIP_DELETION[@]}") -eq 0 ]; then
 			replicaDir="${TARGET[$__replicaDir]}"
 			deleteDir="${TARGET[$__deleteDir]}"