title: Delete object from memory in javascript
body: <p>I am working on an AJAX application with a lot of Javascript. All pages are loaded through AJAX.<br>
  On a certain page I have a grid which is build in Javascript. Now when I leave that page I want to destroy that grid. I call jQuery.remove() but this only deletes the object from the DOM.<br>
  My question is how can I delete this grid object from the memory? Cause it still exists when I move away from the page.</p>
  
  <p>Much appreciated!</p>