wp_localize_script it's doesn't work

hai,

i’m amateur wordpress developer,

this is my case,

I’m create a theme options SMOF to customize the slider, partly script file .js (for slides), I’ve overridden in header.php.

current speed, i integration in theme options, my changes theme options it’s work, but fitting nav + auto (auto slide). I replace false (in header.php), it doesn’t work. but fitting in its files .js I replace false, it’s work.

i try use wp_localize_script, for speed it’s work. but for nav + auto it’s doesn’t work. i don’t know why ??

this my code for wp_localize :

<?php
    global $data;

    $smof = of_get_options();

     $speed = $smof['speed'];
    $arrow = $smof['arrow'];
    $auto = $smof['auto'];

   wp_enqueue_script('sunslider', get_template_directory_uri() .'/js/custom.js', true);

    wp_localize_script('sunslider', 'slider_info', array ( 'auto' => $auto,
                                                           'nav' => $arrow,
                                                           'speed' => $speed ));
    ?>

end then, i see source of the page. any this script :

<script type='text/javascript'>
/* <![CDATA[ */
var slider_info = {"auto":"0","nav":"0","speed":"505"};
/* ]]> */
</script>

and, i has change for my custom.js. this my script for slider :

jQuery(function () {
      // Slideshow 4
      jQuery(".pic_slider").responsiveSlides({
        auto: slider_info.auto, // < this
        pager: false,
        nav: slider_info.nav, // < this
        speed: slider_info.speed, // < this
        namespace: "callbacks",
        before: function () {
          jQuery('.events').append("<li>before event fired.</li>");
        },
        after: function () {
          jQuery('.events').append("<li>after event fired.</li>");
        }
      });
    });

anyone can help me? please ??
thx before ??