oh i should have been using "ui.value" instead: $('.borge').css('height', ui.value * 10);
i guess - this seems to work. On Jan 4, 7:51 pm, Janmansilver <jan.poul...@gmail.com> wrote: > I want to scale images via Jquery's UI slider much like this: > > $('.imageExample').css('height', ui.handle.css('left')); > > But I don't want to do it in a "ratio 1:1 way" i would like to say: > > $('.imageExample').css('height', ui.handle.css('left') / 200 * 100 ); > > But this does not work? How do I do math operations in Jquery / > JavaScript correctly?