Google+ follow in dropdown menu

dynamic_gplus.js

var $ = jQuery;
var gapi;
var googlePlusAdded = false;
var gplusoneLoaded = false;
var gplusClass = ".button__googlePlus"; // Class where you want to insert G+ button
var gplusPage = "http://your_google_plus_page";

    // Add Google+ on menu hover
    $('#menu').hover(function() { // ID or Class of your menu hover
        if (!googlePlusAdded) {
            $(gplusClass).append('<div class="g-follow" data-annotation="bubble" data-height="20" data-width="120" data-href="'+ gplusPage + '" data-rel="publisher"></div>');
            googlePlusAdded = true;
            
            if(!gplusoneLoaded){
                gplusoneLoaded = true;
                $.getScript("//apis.google.com/js/platform.js"); 
            }else{
                if(gapi){ // IE7 can't handle it
                    gapi.plusone.go();
                }
            }        
        } 
    });