Slideshow gallery hardcoding

<?php

if (function_exists('slideshow')) {
    slideshow(
        $output = true,
        $gallery_id = 3,
        $post_id = false,
        $params = array(
            'width'     =>  "600",
            'height'    =>  "400",
            'showthumbs'    =>  true,
            //etc...
        )
    );
}

?>