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<div align="center" id="demo" style="overflow:hidden;height:200px;width:250px;border:1px solid #6699cc;font-size:14px;color:#336699;line-height:22px;text-align:left;padding:10px"> <div id="demo1"> 无缝隙向上滚动,兼容IE和FF<br /> 电脑软硬件应用网<br /> 网址:http://www.45its.com<br /> 专注电脑学习 </div> <div id="demo2"></div> </div> <script language="javascript" type="text/javascript"> <!-- var demo = document.getElementById("demo"); var demo1 = document.getElementById("demo1"); var demo2 = document.getElementById("demo2"); var speed=30; //滚动速度值，值越大速度越慢 var nnn=200/demo1.offsetHeight; for(i=0;i<nnn;i++){demo1.innerHTML+="<br />"+ demo1.innerHTML} demo2.innerHTML = demo1.innerHTML //克隆demo2为demo1 function Marquee(){ if(demo2.offsetTop-demo.scrollTop<=0) //当滚动至demo1与demo2交界时 demo.scrollTop-=demo1.offsetHeight //demo跳到最顶端 else{ demo.scrollTop++ //如果是横向的 将 所有的 height top 改成 width left } } var MyMar = setInterval(Marquee,speed); //设置定时器 demo.onmouseover = function(){clearInterval(MyMar)} //鼠标经过时清除定时器达到滚动停止的目的 demo.onmouseout = function(){MyMar = setInterval(Marquee,speed)} //鼠标移开时重设定时器 --> </script> |