js實作網站首頁圖片滾動顯示_javascript技巧

var 速度= 20;
var tab = document.getElementById("demo");
var tab1 = document.getElementById("demo1");
var tab2 = document .getElementById("demo2");
tab2.innerHTML = tab1.innerHTML;
function Marquee() {
if (tab2.offsetWidth - tab.scrollLeft else {
tab.scrollLeft ;
}
}
var MyMar = setInterval(Marquee, speed);
tab.onmouseover = fInterunction () {clearvalval( MyMar) };
tab.onmouseout = function () { MyMar = setInterval(Marquee, speed) };
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