odoo/addons/account/wizard/account_invoice_state_view.xml

<openerp>
    <data>

        <record id="account_invoice_confirm_view" model="ir.ui.view">
            <field name="name">account.invoice.confirm.form</field>
            <field name="model">account.invoice.confirm</field>
            <field name="type">form</field>
            <field name="arch" type="xml">
            <form string="Confirm Draft Invoices">
                <separator string="Confirm Draft Invoices" colspan="4"/>
                    <group colspan="4" col="6">
                        <button icon="gtk-cancel" special="cancel" string="Close"/>
                        <button icon="terp-camera_test" string="Confirm Invoices" name="invoice_confirm" type="object" default_focus="1"/>
                   </group>
               </form>
            </field>
        </record>

        <record id="action_account_invoice_confirm" model="ir.actions.act_window">
            <field name="name">Confirm Draft Invoices</field>
            <field name="res_model">account.invoice.confirm</field>
            <field name="view_type">form</field>
            <field name="view_mode">form</field>
           <field name="view_id" ref="account_invoice_confirm_view"/>
           <field name="target">new</field>
        </record>

<!--        <record model="ir.values" id="action_account_invoice_confirm_values">-->
<!--            <field name="model_id" ref="account.model_account_invoice" />-->
<!--            <field name="object" eval="1" />-->
<!--            <field name="name">Confirm Draft Invoices</field>-->
<!--            <field name="key2">client_action_multi</field>-->
<!--            <field name="value" eval="'ir.actions.act_window,' +str(ref('action_account_invoice_confirm'))" />-->
<!--            <field name="key">action</field>-->
<!--            <field name="model">account.invoice</field>-->
<!--        </record>-->

        <record id="account_invoice_cancel_view" model="ir.ui.view">
            <field name="name">account.invoice.cancel.form</field>
            <field name="model">account.invoice.cancel</field>
            <field name="type">form</field>
            <field name="arch" type="xml">
            <form string="Cancel Selected Invoices">
                <separator string="Cancel Selected Invoices" colspan="4"/>
                    <group colspan="4" col="6">
                        <button icon="terp-dialog-close" special="cancel" string="Close"/>
                        <button icon="gtk-cancel" string="Cancel Invoices" name="invoice_cancel" type="object" default_focus="1"/>
                   </group>
               </form>
            </field>
        </record>

        <record id="action_account_invoice_cancel" model="ir.actions.act_window">
            <field name="name">Cancel Selected Invoices</field>
            <field name="res_model">account.invoice.cancel</field>
            <field name="view_type">form</field>
            <field name="view_mode">form</field>
           <field name="view_id" ref="account_invoice_cancel_view"/>
           <field name="target">new</field>
        </record>

<!--        <record model="ir.values" id="action_account_invoice_cancel_values">-->
<!--            <field name="model_id" ref="account.model_account_invoice" />-->
<!--            <field name="object" eval="1" />-->
<!--            <field name="name">Cancel Selected Invoices</field>-->
<!--            <field name="key2">client_action_multi</field>-->
<!--            <field name="value" eval="'ir.actions.act_window,' +str(ref('action_account_invoice_cancel'))" />-->
<!--            <field name="key">action</field>-->
<!--            <field name="model">account.invoice</field>-->
<!--        </record>-->

    </data>
</openerp>