javascript

CHAPTER 10 ■ SCRIPTING BOM
416
var wrapper = findClass("wrapper", scroller)[0];
var slide = findClass("slide", scroller)[0];
var w1 = parseInt(queryCascade(wrapper, "width"));
var w2 = parseInt(queryCascade(slide, "width"));
var timer = null;
slide.style.left = queryCascade(slide, "left");
for (var arrows = findClass("arrow", scroller), i = arrows.length, re = /\bright\b/; i -
-; ) {
addListener(arrows[i], "mousedown", press);
arrows[i].jump = (re.test(arrows[i].className)) ? -10 : 10;
}
}
}
function press(e) {
if (!e) e = window.event;
if (!e.target) e.target = e.srcElement;
var jump = e.target.jump;
animate();
burst(e);
thwart(e);
function animate() {
var x = parseInt(slide.style.left) + jump;
if (x >= w1 - w2 && x