var marquee2=new Marquee("marqueedivcontrol"); marquee2.Direction="left"; marquee2.Step=1; marquee2.Width=832; marquee2.Height=120; marquee2.Timer=20; //marquee2.ScrollStep=-1;//此句禁止鼠标控制 document.getElementById('left1').onclick=function(){marquee2.Direction=2}; document.getElementById('right1').onclick=function(){marquee2.Direction=3}; marquee2.Start();