I have been dissecting the event and ui objects in firebug but it doesn\'t seem to have anything I can use. Am I missing something? I suppose I can keep track of the value chang
If you want to get the direction (value decreases or increases) just use the start and slide event. Store the inital value in a variable when the start event is fired. After that just compare this stored value against the value the sliding event creates.
Just combine different events.
Before edit:
Use the documented getter
var orientation = $( ".selector" ).slider( "option", "orientation" );
This option determines whether the slider has the min at the left, the max at the right or the min at the bottom, the max at the top. Possible values: 'horizontal', 'vertical'.