Appending scripts from view helper method not working in zend framework

I have a view helper method which is like this

class Zend_View_Helper_LoginForm extends Zend_View_Helper_Abstract
{
    public function loginForm()
    {
        $script = "<script type='text/javascript'>(function (){ $('#submit').click(function (){alert('hello'); return false;})})</script>";     
        $this->view->headScript()->appendScript($script, $type = 'text/javascript');
        $login = new Application_Form_User();
        return $login;
    }

}

But this is not working. I also tried

$this->view->headScript()->appendFile($this->view->baseUrl('/js/jquery.js'), 'text/javascript');

but this is not working either. If i try this code in layout.ph开发者_运维百科tml then it works.Any Idea?

In view file:

<?php $this->headScript()->appendFile('your/sript/file.js') ?>

In your layout:

<?php echo $this->headScript() ?>

You have to add setView method:

class My_View_Helper_ScriptPath { public $view;

public function setView(Zend_View_Interface $view)
{
    $this->view = $view;
}

public function scriptPath($script)
{
    return $this->view->getScriptPath($script);
}

}