Bug: Sliders with 2 handles
It seems to be possible to get in a situation with 2 sliders where
moving the slider handles becomes impossible. The problem shows up on
the UI slider demo on the main ui.jquery.com page.
If you drag the two sliders together then you can only drag the
rightmost slider. Once you've dragged it clear of the leftmost slider
the left slider becomes draggable again, but if the rightmost slider
is in the rightmost position and you drag the leftmost slider over it
then you're unable to drag any slider anywhere.