diff --git a/src/main/scala/app/CreateRepositoryServlet.scala b/src/main/scala/app/CreateRepositoryServlet.scala
index 61fe92a..66e8a61 100644
--- a/src/main/scala/app/CreateRepositoryServlet.scala
+++ b/src/main/scala/app/CreateRepositoryServlet.scala
@@ -13,6 +13,13 @@
  */
 class CreateRepositoryServlet extends ServletBase {
   
+  case class RepositoryCreationForm(name: String, description: String)
+  
+  val form = mapping(
+    "name"        -> trim(label("Repository name", text(required, maxlength(40), repository))), 
+    "description" -> trim(label("Description"    , text()))
+  )(RepositoryCreationForm.apply)
+  
   /**
    * Show the new repository form.
    */
@@ -23,53 +30,41 @@
   /**
    * Create new repository.
    */
-  post("/") {
-    withValidation(form, params){ form =>
-      val gitdir = getRepositoryDir(LoginUser, form.name)
-      val repository = new RepositoryBuilder().setGitDir(gitdir).setBare.build
-    
-      repository.create
-    
-      val config = repository.getConfig
-      config.setBoolean("http", null, "receivepack", true)
-      config.save
-    
-      val tmpdir = getInitRepositoryDir(LoginUser, form.name)
-      try {
-        // Clone the repository
-        Git.cloneRepository.setURI(gitdir.toURI.toString).setDirectory(tmpdir).call
-    
-        // Create README.md
-        FileUtils.writeStringToFile(new File(tmpdir, "README.md"), if(form.description.nonEmpty){
-            form.name + "\n===============\n\n" + form.description
-          } else {
-            form.name + "\n===============\n"
-          }, "UTF-8")
-    
-        val git = Git.open(tmpdir)
-        git.add.addFilepattern("README.md").call
-        git.commit.setMessage("Initial commit").call
-        git.push.call
-      
-      } finally {
-        FileUtils.deleteDirectory(tmpdir)
-      }
-      
-      // redirect to the repository
-      redirect("/%s/%s".format(LoginUser, form.name))
-    }
-  }
-  
-  get("/validate") {
-    contentType = "application/json"
-    form.validateAsJSON(params)
-  }
-  
-  val form = mapping(
-      "name"        -> trim(label("Repository name", text(required, maxlength(40), repository))), 
-      "description" -> trim(label("Description"    , text()))
-  )(RepositoryCreationForm.apply)
+  post("/", form) { form =>
+    val gitdir = getRepositoryDir(LoginUser, form.name)
+    val repository = new RepositoryBuilder().setGitDir(gitdir).setBare.build
 
+    repository.create
+
+    val config = repository.getConfig
+    config.setBoolean("http", null, "receivepack", true)
+    config.save
+
+    val tmpdir = getInitRepositoryDir(LoginUser, form.name)
+    try {
+      // Clone the repository
+      Git.cloneRepository.setURI(gitdir.toURI.toString).setDirectory(tmpdir).call
+    
+      // Create README.md
+      FileUtils.writeStringToFile(new File(tmpdir, "README.md"), if(form.description.nonEmpty){
+          form.name + "\n===============\n\n" + form.description
+        } else {
+          form.name + "\n===============\n"
+        }, "UTF-8")
+  
+      val git = Git.open(tmpdir)
+      git.add.addFilepattern("README.md").call
+      git.commit.setMessage("Initial commit").call
+      git.push.call
+    
+    } finally {
+      FileUtils.deleteDirectory(tmpdir)
+    }
+    
+    // redirect to the repository
+    redirect("/%s/%s".format(LoginUser, form.name))
+  }
+  
   def repository: Constraint = new Constraint(){
     def validate(name: String, value: String): Option[String] = {
       if(!value.matches("^[a-z0-9\\-_]+$")){
@@ -82,6 +77,4 @@
     }
   }
   
-  case class RepositoryCreationForm(name: String, description: String)
-  
 }
\ No newline at end of file
diff --git a/src/main/scala/app/ServletBase.scala b/src/main/scala/app/ServletBase.scala
index 2f6af60..c153d3b 100644
--- a/src/main/scala/app/ServletBase.scala
+++ b/src/main/scala/app/ServletBase.scala
@@ -1,5 +1,7 @@
 package app
 
+import util.Validations._
+
 import org.scalatra._
 import org.scalatra.json._
 import org.json4s._
@@ -15,4 +17,29 @@
   // TODO get from session
   val LoginUser = System.getProperty("user.name")
   
+  def get[T](path: String, form: MappingValueType[T])(action: T => Any) = {
+    super.get(path){
+      withValidation(form, params){ obj: T =>
+        action(obj)
+      }
+    }
+    registerValidate(path, form)
+  }
+
+  def post[T](path: String, form: MappingValueType[T])(action: T => Any) = {
+    super.post(path){
+      withValidation(form, params){ obj: T =>
+        action(obj)
+      }
+    }
+    registerValidate(path, form)
+  }
+  
+  private def registerValidate[T](path: String, form: MappingValueType[T]) = {
+    super.post(path.replaceFirst("/$", "") + "/validate"){
+      contentType = "application/json"
+      form.validateAsJSON(params)
+    }
+  }
+  
 }
\ No newline at end of file
diff --git a/src/main/scala/util/Validations.scala b/src/main/scala/util/Validations.scala
index 8f70b5e..0de52f9 100644
--- a/src/main/scala/util/Validations.scala
+++ b/src/main/scala/util/Validations.scala
@@ -248,28 +248,28 @@
     override def validate(name: String, value: String): Seq[(String, String)] = valueType.validate(name, value.trim)
   }
   
-  /**
-   * ValueType wrapper to trim all parameters.
-   * 
-   * {{{
-   * val form = trim(mapping(
-   *   "name" -> text(required),
-   *   "mail" -> text(required)
-   * ))
-   * }}}
-   */
-  def trim[T](valueType: MappingValueType[T]): MappingValueType[T] = new MappingValueType[T](){
-    def validate(name: String, params: Map[String, String]): Seq[(String, String)] =
-      fields.map { case (name, valueType) => valueType.validate(name, trimMap(params)) }.flatten
-    
-    def validateAsJSON(params: Map[String, String]): JObject = {
-      JObject(validate("form", trimMap(params)).map { case (key, value) =>
-        JField(key, JString(value))
-      }.toList)
-    }
-      
-    private def trimMap(params: Map[String, String]): Map[String, String] = params.map{ x => x._1 -> x._2.trim }
-  }
+//  /**
+//   * ValueType wrapper to trim all parameters.
+//   * 
+//   * {{{
+//   * val form = trim(mapping(
+//   *   "name" -> text(required),
+//   *   "mail" -> text(required)
+//   * ))
+//   * }}}
+//   */
+//  def trim[T](valueType: MappingValueType[T]): MappingValueType[T] = new MappingValueType[T](){
+//    override def validate(name: String, params: Map[String, String]): Seq[(String, String)] =
+//      fields.map { case (name, valueType) => valueType.validate(name, trimMap(params)) }.flatten
+//    
+//    override def validateAsJSON(params: Map[String, String]): JObject = {
+//      JObject(validate("form", trimMap(params)).map { case (key, value) =>
+//        JField(key, JString(value))
+//      }.toList)
+//    }
+//      
+//    private def trimMap(params: Map[String, String]): Map[String, String] = params.map{ x => x._1 -> x._2.trim }
+//  }
   
   /**
    * ValueType wrapper to specified a property name which is used in the error message. 
diff --git a/src/main/webapp/assets/common/js/validation.js b/src/main/webapp/assets/common/js/validation.js
index 1e37e6e..90815c5 100644
--- a/src/main/webapp/assets/common/js/validation.js
+++ b/src/main/webapp/assets/common/js/validation.js
@@ -12,7 +12,7 @@
 	}
 	
 	// TODO use $.post() instead of $.getJSON
-	$.getJSON(form.attr('action') + '/validate', $(e.target).serialize(), function(data){
+	$.post(form.attr('action') + '/validate', $(e.target).serialize(), function(data){
 		// clear all error messages
 		$('.error-message').text('');
 		
@@ -24,6 +24,6 @@
 				$('#error-' + key).text(value);
 			});
 		}
-	});
+	}, 'json');
 	return false;
 }