title: Set Google +1 button url with javascript
body: <p>I am building an image gallery that is slider based and loads new images via javascript and have a requirement to set the Google +1 button's URL via javascript so +1 can be set on each image.</p>
  
  <p>I also need to reload the +1 button based on each image (the url will have a querystring parameter containing the image id to make it unique). Is this possible?</p>