Change javascript variable in real time

[admin]

I have a video website, and in the source I have a javascript variable named ajax_switch.post_status which has 2 values, on or off.

Also I have a slide button with 2 options on and off. This button turn on or off publish to facebook. So when I press play to a video after 10 seconds publish to facebook. The button is a jquery one so when I press on or off made a update in database. How can I change the variable of ajax_switch.post_status in real time in source so if the user access the video page and will deactivate the facebook post without refreshing click play to not publish?

I use this in wordpress. My functions are:

Show the button code in single php

<div class="left" id="1"></div>
<div id="ajax" style="padding-left: 10px; line-height: 13px; height: 27px; vertical-align:middle; display: table-cell;" >
    Permiteți Video Best să distribuie acest video pe Facebook cu acordul dvs. Debifând această casetă va opri distribuirea și va șterge postarea de pe cronologia dvs.
</div>
<div class="clear"></div>

<script type="text/javascript">

    $('#1').iphoneSwitch(ajax_switch.post_status, function() 
    {
        $.post(ajax_switch.templateUrl+'on.php', function(data) 
        {
            $('#ajax').html(data);
            ajax_switch.post_status = 'on';
        });
    },
    function() 
    {
        $.post(ajax_switch.templateUrl+'off.php', function(data) 
        {
            $('#ajax').html(data);
            ajax_switch.post_status = 'off';
        });
    },
    {
        switch_on_container_path: ajax_switch.templateUrl+'iphone_switch_container_off.png'
    });
</script>

And the condition for posting:

if(ajax_switch.post_status == 'on') 
{
    FB.api(
        '/me/video.watches',
        'post',
        { 
            'movie': '<?php  the_permalink() ?>?ex=257957417674441',
            'access_token': '<?php echo $token; ?>' 
        },
        function(response) 
        {
            if (!response || response.error) 
            {
                console.log(response.error);
            } 
            else 
            {
                console.log('Ewww!');
            }
        });
        }