I have a script to move a div using the mouse. It works correctly and updates the position onmouse move. However, after the second or third mousedown on it, the div doesn't update its position when I move the mouse but it will update the position onmouseup. I have tested the script in some browsers and apparently this only occurs in Firefox. Looks like it thinks it is an image and then creates that image shadow it usually does and moves it around until mouseup.. If I was not clear enough, you can check what I'm talking about in the page. All the source code is on the .html.