rem: move_operation_to_account ( OPERATION_SELECTIONNEE, account );
add: move_operation_to_account ( OPERATION_SELECTIONNEE, target_account );
context: void move_selected_operation_to_account ( GtkMenuItem * menu_item ){    gint account;    if (! assert_selected_transaction()) return;    account = GPOINTER_TO_INT ( gtk_object_get_data ( GTK_OBJECT(menu_item), 						      "no_compte" ) );      move_operation_to_account ( OPERATION_SELECTIONNEE,				account );    gtk_notebook_set_page ( GTK_NOTEBOOK ( notebook_general ), 1 );    if ( mise_a_jour_combofix_tiers_necessaire )	mise_a_jour_combofix_tiers ();    if ( mise_a_jour_combofix_categ_necessaire )	mise_a_jour_combofix_categ ();    if ( mise_a_jour_combofix_imputation_necessaire )	mise_a_jour_combofix_imputation ();    modification_fichier ( TRUE );}