css,js and image path inside a module?

[prestashop_newuser]

Hi,

In prestashop modules inside function _displayForm() I want to add my modules css file. For that I have my code like this

    

$this->_html .= '

    <link rel="stylesheet" href="../modules/mymodulename/css/styles.css" />

    <script src="../modules/mymodulename/js/custom.js" type="text/javascript" />

    ';

    It is working fine (as it is absolute path)  but I want to know is there any good and standard method to get all the css, js and image path ?

Edited September 28, 2013 by prestashop_newuser (see edit history)

[vekia]

here is an example:

public function hookBackOfficeFooter($params){
        $this->context->controller->addJqueryUI('ui.sortable');
        $this->context->controller->addJS('js/script.js');
        $this->context->controller->addCSS($this->_path.'mystyles.css');
    }