required richtig einbauen

[hmm]

auch hier funktioniert leider nix:

      <div class="col-md-8">
                <h3>Registrieren</h3>
                <form name="registrieren_form" method="post" action="/registrieren" novalidate>
                    <div class="control-group form-group">
                        <div class="controls">
                            <fieldset>
                		   	<legend>Anrede</legend>
                		    	<label for="reg_keine">keine Anrede</label>
                		    	<input id="reg_keine" name="Anrede" type="radio" value="not" />
                			  	<label for="reg_herr">Herr</label>
                			  	<input id="reg_herr" name="Anrede" type="radio" value="m" />
                			  	<label for="reg_frau">Frau</label>
                			  	<input id="reg_frau" name="Anrede" type="radio" value="f" />
                			</fieldset>
                        </div>
                    </div>
                    <div class="control-group form-group">
                        <div class="controls">
                            <label for="reg_vorname">Vorname</label>
			                <input id="reg_vorname" class="form-control" name="Vorname" placeholder="Max" required/>
                        </div>
                    </div>
                    <div class="control-group form-group">
                        <div class="controls">
                            <label for="reg_Nachname">Nachname</label>
		                	<input id="reg_Nachname" class="form-control" name="Nachname" placeholder="Mustermann" required/></p>
                        </div>
                    </div>
                     <div class="control-group form-group">
                        <div class="controls">
                            <label for="reg_email">E-Mail</label>
			                <input id="reg_email" class="form-control" name="Email" type="email" placeholder="max.mustermann&#64;example.com" required/>
                        </div>
                    </div>
                     <div class="control-group form-group">
                        <div class="controls">
                            <label for="reg_pass">Passwort</label>
			                <input id="reg_pass" class="form-control" name="Pass" type="password" placeholder="geheim" required/>
                        </div>
                    </div>
                     <div class="control-group form-group">
                        <div class="controls">
                		    <label for="datenschutz">Ich habe die Erklärungen zum <a href="/datenschutz">Datenschutz</a> gelesen und stimme diesen zu.</label>
                		    <input id="datenschutz" name="datenschutz" type="radio" value="ja" />
                        </div>
                    </div>
                    <div id="success"></div>
                    <!-- For success/fail messages -->
                    <button type="submit" class="btn btn-primary">Registrieren</button>
                </form>
            </div>