I have two identical objects on the page, so I get more of the same lines of code. Can anything be made simpler, perhaps with merging?
for(var i=0;i<ticks.length,i<ticks2.length;i++) {
var tick = ticks[i];
var tick2 = ticks2[i];
var tickCenter = tick.offsetWidth / 2
var offset = (i - currentTick) * pixelsPerTick;
var percent = 1-(Math.abs(i-currentTick)/10);
tick2.style.top = ((offset + center - tickCenter)|0) + "px";
tick2.style.opacity = percent;
tick.style.top = ((offset + center - tickCenter)|0) + "px";
tick.style.opacity = percent;
}