var jd = document.getElementById("jd"); var ul = jd.children[0].children[0]; var ol = jd.children[1]; var ollis = ol.children; var leader = 0,target = 0; for(var i = 0; i<ollis.length; i++){ ollis[i].index = i; ollis[i].onmouseover = function(){ for(var j = 0; j<ollis.length; j++){ ollis[j].className =""; } this.className = "cur"; // alert(this.index) target=-this.index*1440; } } setInterval(function(){ leader = leader + (target-leader)/10; ul.style.left = leader +"px"; },30)
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