public function find_all_files($dir) 
	{
	  $root = scandir($dir); 
    foreach($root as $value) 
    { 
        if($value === '.' || $value === '..')
        {
        	continue;
        } 
        if(is_file("$dir/$value")) 
        {
        	$result[] = "$dir/$value";
        	$this->setAsset("$dir/$value");
        	continue;
        } 
        foreach($this->find_all_files("$dir/$value") as $value) 
        { 
            $result[] = $value; 
        } 
    } 
    return $result; 
	}