title: Determine whether cursor is above some element in Raphael.js
body: <p>How can you tell if your cursor is over a certain element in Raphael.js?</p>
  
  <pre><code>if(mouse_is_over){
     //do this 
  }
  else{   
     //do this 
  }
  </code></pre>
  
  <p>Ideally, I would like to test if the mouse if over a circle I named 'c'.</p>
  
  <p>Thanks!</p>