memory leak when page was removed

memory leak when page was removed

hi,
      i have a big problem with memory leak.my application is build with phone gap and jquery mobile and it only has two pages, one is list page the other is detail page.when list page or detail page is removed the memory of the application can't be released, when i close the application (actually the process is not killed) the memory can not be released too.as the application is running, the memory increase bigger and bigger.every item in my list has an image, because the knowned issue about image can not be released , i think it is possible that issue caused by the images.how can i solve that?
     any replay would be appricated!

thanks!