form_fieldset have not legend tag attributes

[eluser]Unknown[/eluser]
Sorry, my english is broken.

form_fieldset was legend tag attributes can not be
ex)
<legend align="bottom">sample</legend>

modified sample here.

Code:

function form_fieldset($legend_text = '', $field_attr = array(), $legend_attr = array() )
    {

        $fieldset = "<fieldset";

        if (is_array($field_attr) AND count($field_attr) > 0)
        {
            foreach ($field_attr as $key => $val)
            {
                $fieldset .= ' '.$key.'="'.$val.'"';
            }
        }

        $fieldset .= ">\n";

        if ($legend_text != '')
        {
            $fieldset .= "<legend";

            if (is_array($legend_attr) AND count($legend_attr) > 0)
            {
                foreach ($legend_attr as $key => $val)
                {
                    $fieldset .= ' '.$key.'="'.$val.'"';
                }
            }

            $fieldset .= ">$legend_text</legend>\n";
        }
    }

[update]
example misstake modified.