title: HTML5 and Canvas/createImageData
body: <p>I just have a question about memory allocation with ImageData in HTML. When you call createImageData, it apparently creates an Object. My question is, when does that object get deleted from memory, and is there a function to delete such objects? If not, would using it in a function with a local variable delete the object on the functions exit?</p>
  
  <p>Thanks</p>