when i implement jCarousel with options "wrap : 'both', vertical : true, scroll : 1" and call prev method this alert apear. I debg the script and discover that the "back" var in the "pos" method is not set to true... so. to make t work i change the script from:
if (d == 0) { alert('jCarousel: No width/height set for items. This will cause an infinite loop. Aborting...'); return 0; } to: if (d == 0) { if (v == 0) { alert('jCarousel: No width/height set for items. This will cause an infinite loop. Aborting...'); return 0; } else { if (v < clipping) v = clipping; break; } }