<?xml version="1.0" encoding="UTF-8"?>
<openerp>
   <data>
      <template id="assets_backend" name="web_helloworld assets" inherit_id="web.assets_backend">
         <xpath expr="." position="inside">
            <script type="text/javascript" src="/your_module_name/static/src/js/hide_your_model_breadcrumb.js" />
         </xpath>
      </template>
      <record model="ir.ui.view" id="your_form_id">
         <field name="name">your.form.name</field>
         <field name="model">your.model</field>
         <field name="type">form</field>
         <field name="arch" type="xml">
            <form>
               <sheet>
                  <group>
                     <field name="field_1" />
                     <field name="field_2" />
                  </group>
               </sheet>
            </form>
         </field>
      </record>
   </data>
</openerp>