Voici un example, d'abord tu defini le menu principal si'il n'existe pas puis tu l'utilise dans le champs "'fk_menu" de ton sous menu
$this->menu[$r]=array( 'fk_menu'=>'fk_mainmenu=hrm', // Put 0 if this is a top menu
'type'=>'left', // This is a Top menu entry
'titre'=>'ContractTitle',
'mainmenu'=>'hrm',
'leftmenu'=>'emcontract',
'url'=>'/emcontract/index.php?mainmenu=hrm&leftmenu=emcontract',
'langs'=>'emcontract@emcontract', // Lang file to use (without .lang) by module. File must be in...
$this->menu[$r]=array( 'fk_menu'=>'fk_mainmenu=hrm', // Put 0 if this is a top menu
'type'=>'left', // This is a Top menu entry
'titre'=>'ContractTitle',
'mainmenu'=>'hrm',
'leftmenu'=>'emcontract',
'url'=>'/emcontract/index.php?mainmenu=hrm&leftmenu=emcontract',
'langs'=>'emcontract@emcontract', // Lang file to use (without .lang) by module. File must be in...