JS小功能(offsetLeft实现图片滚动效果)实例代码_javascript技巧

代码：

代码如下:




window.onload = function () {
var oul = document.getElementsByTagName('ul')[0];
var odiv = document.getElementById('div1');
var ali = document.getElementsByTagName('li');
oul.innerHTML = oul.innerHTML + oul.innerHTML;
oul.style.width = (ali[0].offsetWidth + 5) * ali.length + 'px';
function roll() {
if (oul.offsetLeft <= -oul.offsetWidth / 2) {
oul.style.left = '0';
}
oul.style.left = oul.offsetLeft - 2 + 'px';
}
var timer = null;
timer = setInterval(roll, 30);
odiv.onmouseover = function () {
clearInterval(timer);
}
odiv.onmouseout = function () {
timer = setInterval(roll, 30);
}
};