anchor.diff:                   
                    
                     <section class="mail-box-info">
  +                  	<form role="form-horizontal" method="post" action="email">
                       <header class="header">
                           <div class="compose-btn pull-right">
  -                            <button onclick="sendMessageToCollaboroateur_ajax();" class="btn btn-primary btn-sm"><i class="fa fa-check"></i> Send</button>
  +                        	<!-- onclick="sendMessageToCollaboroateur_ajax();" -->
  +                            <button class="btn btn-primary btn-sm" type="submit" ><i class="fa fa-check"></i> Send</button>
                               <!-- <button class="btn btn-sm btn-default"><i class="fa fa-times"></i> Discard</button>
                               <button class="btn btn-sm btn-default">Draft</button> -->
                           </div>
  
positive.code: 
                      <section class="mail-list">
                          <div class="compose-mail">
                              <form role="form-horizontal" method="post" action="sendEmailToCollaborateur">
                              	<input type="hidden" id="idCollaborateur_sendMessage" name="id">
                                  <div class="form-group">
                                      <label for="to" class="col-md-3">A:</label>
                                      <input type="text" tabindex="1" id="to" class="form-control" readonly="readonly">
  
negative.code:                                 <div class="compose-editor">
                                      <textarea class="wysihtml5 form-control" rows="9" name="msg" id="msg_"></textarea>
                                  </div>
                              
                          </div>
                      </section>
                      </form>
                  </section>
              </div>
          </div>
  