title: JavaScript alert Undefined clicked
body: <p>I'm using Responsive Image maps jQuery Plugin <code>(https://github.com/stowball/jQuery-rwdImageMaps)</code> And i'm trying to make when i click on image map that popup opens. In that idea i succeded but when i click on my image-map first it says  <code>JavaScript alert: Undefined clicked</code> and on the end of page it's <code>Open popup window " title="Bubbles" alt="Bubbles" /&gt;</code>
  but the site still works.. I can't provide fiddle for this because it's to large but here is the link you can view the source: <code>http://kgv-projekt.hr/test/</code></p>
  
  <p>So my final question is how to delete that javascript alert box because i don't want it.. I want when i click on my image map that popup only opens..</p>