jQuery OnMouseMove滚动div上/下，不是右/左，怎么样？

Question

please how to change this code? http://jsbin.com/alokat/1/edit I need scroll Up and Down, not Left and Right. Thanks for reply.

Answer 1

I have adjusted your code a little:

    galW   = $gal.outerWidth(true),
    galSW  = $gal[0].scrollWidth,

to

    galW   = $gal.outerHeight(true),
    galSW  = $gal[0].scrollHeight,

and changed the offset for the mousemove .

Also you need to change $gal.scrollLeft(posX*wDiff); in setInterval to $gal.scrollTop(posX*wDiff); .

You can see all chnages here: http://jsbin.com/alokat/102/

Answer 2

This works http://jsbin.com/alokat/109/edit . Should rename the variables and methods though.