Add the following code to your site, inside the head tag:

<script>
    function SocialShare(url) {
        window.open('https://www.fankolo.com/share?url=' + url, '', 'height=600,width=800');
    }
</script>

Then place the 'Share on Fankolo' button and specify the URL you want to share in the HTML code:

<button onclick="SocialShare('https://yoursite.com/url_you_want_to_share/')">Share in Fankolo</button>

Also you can use this code to share the current page:

<button onclick="SocialShare(window.location.href)">Share in Fankolo</button>

Example: Share