formcheck and captcha sliders

[pSouper]

hi all,
would anyone know if it is possible to integrate a captcha slider in
to the formcheck process? (or visa-versa)

captcha slider is... http://www.lbsaud.com.np/captcha-slider-in-mootools/

the out-of-the-box formcheck does not prevent the out-of-the-box
slider from submitting the form - which is a shame.

have any of you guy's n gals any idea or quick-ish hack to steer me on
the right path?

all help mucho-appreciato

pSouper