var addthis_config = {
     ui_cobrand: "myinsideedge"
};

var addthis_share =
{
    url_transforms: 
        {
            shorten: 
                {      
                    twitter: 'bitly',
                    facebook: 'bitly',
                    email: 'bitly'
                }
        },

   shorteners: 
        {
            bitly: 
                { 
                    username: 'myinsideedge',
                    apiKey: 'R_4d6944297f74d248f59111f5a4c5d667'
                }
        }
};