diff --git a/assets/js/common/functionsSchema.js b/assets/js/common/functionsSchema.js
index dd17c02f..a3b9082e 100644
--- a/assets/js/common/functionsSchema.js
+++ b/assets/js/common/functionsSchema.js
@@ -561,6 +561,13 @@ var ComunicWeb = {
 			 */
 			interface: {
 				//TODO : implement
+			},
+
+			/**
+			 * Friends utilities
+			 */
+			utils: {
+				//TODO : implement
 			}
 		},
 
diff --git a/assets/js/components/friends/utils.js b/assets/js/components/friends/utils.js
new file mode 100644
index 00000000..c44ca9cd
--- /dev/null
+++ b/assets/js/components/friends/utils.js
@@ -0,0 +1,29 @@
+/**
+ * Friends component utilities
+ * 
+ * @author Pierre HUBERT
+ */
+
+ComunicWeb.components.friends.utils = {
+
+	/**
+	 * Extract the IDs of the friends of the users from a friends list
+	 * 
+	 * @param {array} list The friends list to process
+	 * @return {array} The list of IDs
+	 */
+	getUsersIdFromPersonnalList: function(list){
+
+		//Parse the list
+		usersID = [];
+		list.forEach(friend => {
+			//Extract user id
+			usersID.push(friend.ID_friend);
+		});
+
+		//Return the generated list
+		return usersID;
+	},
+
+
+}
\ No newline at end of file
diff --git a/system/config/dev.config.php b/system/config/dev.config.php
index 5db28dc1..f66426da 100644
--- a/system/config/dev.config.php
+++ b/system/config/dev.config.php
@@ -216,6 +216,7 @@ class Dev {
 			"js/components/friends/friendsBar.js",
 			"js/components/friends/listModal.js",
 			"js/components/friends/interface.js",
+			"js/components/friends/utils.js",
 			
 			//Private conversations
 			"js/components/conversations/manager.js",