title: OpenERP Error: Display tabs using <notebook>
body: <p>I tried to display tabs but i got this error: <em>invalid XML for View Architecture!</em></p>
  
  <p>I write the following code : </p>
  
  <pre><code>&lt;record model="ir.ui.view" id="employee_form_view"&gt;
      &lt;field name="name"&gt;employee.form&lt;/field&gt;
      &lt;field name="model"&gt;employee&lt;/field&gt;
      &lt;field name="type"&gt;form&lt;/field&gt;
      &lt;field name="arch" type="xml"&gt;
          &lt;form string="employee"&gt;
              &lt;group colspan="4" col="3"&gt;
                  &lt;field name="nom" /&gt;
                  &lt;field name="poste" /&gt;
                  &lt;field name="employee_age" /&gt;
              &lt;/group&gt;
              &lt;notebook&gt;
                  &lt;page String="Géneral"&gt;
                      &lt;sparator string="Links" colspan="4" /&gt;
                      &lt;field name="nom" /&gt;
                  &lt;/page&gt;
                  &lt;page String="Others"&gt;
                      &lt;field name="poste" /&gt;
                      &lt;field name="employee_age" /&gt;
                  &lt;/page&gt;
              &lt;/notebook&gt;
          &lt;/form&gt;
      &lt;/field&gt;
  &lt;/record&gt;
  </code></pre>
  
  <p>why i get that error ? and how can I fix that problem? </p>
  
  <p>thank you for your help</p>