diff --git a/assets/js/common/errors.js b/assets/js/common/errors.js
index d9532fda..78e6fdc8 100644
--- a/assets/js/common/errors.js
+++ b/assets/js/common/errors.js
@@ -83,7 +83,9 @@ ComunicWeb.common.error.pageNotFound = function(additionnalData, targetElement){
 	//Show template element
 	var templateURI = "common/errors/error.tpl";
 	var dataTemplate = {
-
+		error_code: "404",
+		error_title: "Page not found",
+		error_message: "The requested page ("+location.href+") was not found on this website. Please check your request..."
 	};
 	ComunicWeb.common.page.getAndShowTemplate(targetElement, dataTemplate, templateURI, (function(){}), true);
 	
diff --git a/assets/js/common/functionsSchema.js b/assets/js/common/functionsSchema.js
index 1e6088e5..7720b802 100644
--- a/assets/js/common/functionsSchema.js
+++ b/assets/js/common/functionsSchema.js
@@ -176,5 +176,17 @@ var ComunicWeb = {
          * Get log content in a string
          */
         getLogContent: function(){},
-    }
+    },
+
+    /**
+     * User functions
+     */
+    user:{
+        /**
+         * Login tokens storage controller
+         */
+        loginTokens: {
+            //TODO: implement
+        },
+    },
 }
\ No newline at end of file
diff --git a/assets/js/common/page.js b/assets/js/common/page.js
index ca99e11e..aab04ed9 100644
--- a/assets/js/common/page.js
+++ b/assets/js/common/page.js
@@ -143,7 +143,17 @@ ComunicWeb.common.page = {
         
         //Define how to apply the template
         var afterDownloadTemplateContent = function(templateContent){
-            targetElem.innerHTML = (templateContent);
+
+            //Apply data templates
+            for(elemName in dataTemplate){
+                //We change the template content while it still exists
+                while(templateContent.indexOf("{"+elemName+"}") != -1){
+                    templateContent = templateContent.replace("{"+elemName+"}", dataTemplate[elemName]);
+                } 
+            }
+
+            //Apply template source
+            targetElem.innerHTML = templateContent;
         }
 
         //Perform request
diff --git a/assets/js/user/loginTokens.js b/assets/js/user/loginTokens.js
new file mode 100644
index 00000000..2ff4b02d
--- /dev/null
+++ b/assets/js/user/loginTokens.js
@@ -0,0 +1,105 @@
+/**
+ * User functions
+ * - Login tokens
+ * 
+ * @author Pierre HUBERT
+ */
+
+ComunicWeb.user.loginTokens = {
+    /**
+     * Set User tokens
+     * 
+     * @param {Object} tokens The token object
+     * @param {Type} storageType The token destination (local or session)
+     */
+    setUserTokens: function(tokens, storageType){
+        //First, we check if there is any login token available
+        this.deleteLoginTokens();
+
+        //We encode login tokens
+        var tokensArray = JSON.stringify(tokens);
+
+        //We store login tokens
+        //If localStorage is required
+        if(storageType == "local"){
+            localStorage.setItem("loginTokens", tokensArray);
+        }
+        else {
+            //Session storage
+            sessionStorage.setItem("loginTokens", tokensArray);
+        }
+
+        //Everything is OK
+        return true;
+
+    },
+
+    /**
+     * Check if there is any login tokens available
+     * 
+     * @return {Boolean} True or false, depending of the result
+     */
+    checkLoginTokens: function(){
+        //First, check in local storage
+        if(localStorage.getItem("loginTokens") != "null"){
+            //It is OK
+            return true;
+        }
+
+        //Check if we have to remove any thing in session storage
+        if(sessionStorage.getItem("loginTokens") != "null"){
+            //It is OK
+            return true;
+        }
+
+        //Else there isn't login token available
+        return false;
+    },
+
+    /**
+     * Get login tokens
+     * 
+     * @return {Object} Login tokens, if they exists (false in failure)
+     */
+    getLoginTokens: function(){
+        //First, check in local storage
+        if(localStorage.getItem("loginTokens") != "null"){
+            //Return localStorage login tokens
+            var loginTokenString = localStorage.getItem("loginTokens")
+        }
+
+        //Then, check in session storage
+        if(sessionStorage.getItem("loginTokens") != "null"){
+            //Return session storage login token
+            var loginTokenString = sessionStorage.getItem("loginTokens")
+        }
+
+        //Check if we didn't get any login token
+        if(!loginTokenString){
+            return false;
+        }
+
+        //Decode the login token
+        var loginTokens = JSON.parse(loginTokenString);
+
+        //Returns the result
+        return loginTokens;
+    },
+
+    /**
+     * Perform user logout (delete tokens)
+     */
+    deleteLoginTokens: function(){
+        //Check if we have to remove any thing in local storage
+        if(localStorage.getItem("loginTokens") != "null"){
+            //Remove the key
+            localStorage.removeItem("loginTokens");
+        }
+
+        //Check if we have to remove any thing in session storage
+        if(sessionStorage.getItem("loginTokens") != "null"){
+            //Remove the key
+            sessionStorage.removeItem("loginTokens");
+        }
+    }
+};
\ No newline at end of file
diff --git a/assets/templates/common/errors/error.tpl b/assets/templates/common/errors/error.tpl
index 8aafdd1b..34cd6adb 100644
--- a/assets/templates/common/errors/error.tpl
+++ b/assets/templates/common/errors/error.tpl
@@ -1,4 +1,8 @@
-<div>
+<!--
+    Error template
+
+    @author Pierre HUBERT
+--><div>
     <h1 style='text-align: center;'><b>{error_code}</b> <small>{error_title}</small></h1>
 
     <p style='text-align:justify;'>
diff --git a/corePage/config/dev.config.php b/corePage/config/dev.config.php
index f5fe946f..517ae60f 100644
--- a/corePage/config/dev.config.php
+++ b/corePage/config/dev.config.php
@@ -43,6 +43,9 @@ $config['JSfiles'] = array(
     "%PATH_ASSETS%js/langs/en.inc.js",
     "%PATH_ASSETS%js/common/page.js",
 
+    //User scripts
+    "%PATH_ASSETS%js/user/loginTokens.js",
+
     //Init script
     "%PATH_ASSETS%js/init.js",
 );