js控制多图左右滚动切换效果代码分享
2015-08-26 16:15作者：yezheng
本文实例讲述了js控制多图左右滚动切换效果。分享给大家供大家参考。具体如下：
这是一款纯js实现点击左右按钮图片自动左右平滑滚动，默认5个一组左右滚动，可以手动修改js参数更改滑动数量。
运行效果图：
小提示：浏览器中如果不能正常运行，可以尝试切换浏览模式。
为大家分享的js控制多图左右滚动切换效果代码如下
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>js控制多图左右滚动切换效果</title>
<link href="css/jiaobenzhijia.css" type="text/css" rel="stylesheet" />
<script type="text/javascript">
window.onload = function () {
var oBtnLeft = document.getElementById("goleft");
var oBtnRight = document.getElementById("goright");
var oDiv = document.getElementById("indexmaindiv");
var oDiv1 = document.getElementById("maindiv1");
var oUl = oDiv.getElementsByTagName("ul")[0];
var aLi = oUl.getElementsByTagName("li");
var now = -5 * (aLi[0].offsetWidth + 13);
oUl.style.width = aLi.length * (aLi[0].offsetWidth + 13) + 'px';
oBtnRight.onclick = function () {
var n = Math.floor((aLi.length * (aLi[0].offsetWidth + 13) + oUl.offsetLeft) / aLi[0].offsetWidth);
if (n <= 5) {
move(oUl, 'left', 0);
}
else {
move(oUl, 'left', oUl.offsetLeft + now);
}
}
oBtnLeft.onclick = function () {
var now1 = -Math.floor((aLi.length / 5)) * 5 * (aLi[0].offsetWidth + 13);
if (oUl.offsetLeft >= 0) {
move(oUl, 'left', now1);
}
else {
move(oUl, 'left', oUl.offsetLeft - now);
}
}
var timer = setInterval(oBtnRight.onclick, 5000);
oDiv.onmouseover = function () {
clearInterval(timer);
}
oDiv.onmouseout = function () {
timer = setInterval(oBtnRight.onclick, 5000);
}
};
function getStyle(obj, name) {
if (obj.currentStyle) {
return obj.currentStyle[name];
}
else {
return getComputedStyle(obj, false)[name];
}
}
function move(obj, attr, iTarget) {
clearInterval(obj.timer)
obj.timer = setInterval(function () {
var cur = 0;
if (attr == 'opacity') {
cur = Math.round(parseFloat(getStyle(obj, attr)) * 100);
}
else {
cur = parseInt(getStyle(obj, attr));
}
var speed = (iTarget - cur) / 6;
speed = speed > 0 ? Math.ceil(speed) : Math.floor(speed);
if (iTarget == cur) {
clearInterval(obj.timer);
}
else if (attr == 'opacity') {
obj.style.filter = 'alpha(opacity:' + (cur + speed) + ')';
obj.style.opacity = (cur + speed) / 100;
}
else {
obj.style[attr] = cur + speed + 'px';
}
}, 30);
}
</script>
</head>
<body style="background:#CCC;">
<div class="indexmaindiv" id="indexmaindiv">
<div class="indexmaindiv1 clearfix" >
<div class="stylesgoleft" id="goleft"></div>
<div class="maindiv1 " id="maindiv1">
<ul id="count1">
<li>
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<div class="detailimg"><img src="images/1.jpg" /></div>
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</div>
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</div>
</li>
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<div class="detailimg"><img src="images/4.jpg" /></div>
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<li>
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<div class="detailimg"><img src="images/5.jpg" /></div>
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<li>
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</div>
</li>
</ul>
</div>
<div class="stylesgoright" id="goright"></div>
</div>
</div>
</body>
</html>
以上就是为大家分享的js控制多图左右滚动切换效果代码，希望大家可以喜欢。