swfobject javascript libary breaks post edit

Any plugin that uses swfobject.js breaks the post editing in wordpress. When I go to edit a post, it works fine until I save the post. When I click to save the post, it goes back to the “Edit Posts” page, and going to the post that was supposed to be edited, none of the content changed. This problem arises when I use the swfObj plugin and when I use swfobject.js in a plugin I am developing. When I remove the code that inserts a swf into the post editing page, everything works as expected. It is when swfobject.js is used to actually insert a swf that editing is broken.