var speed=30;var direction = 'left';document.getElementById('demo2').innerHTML=document.getElementById('demo1').innerHTMLdocument.getElementById('demo').scrollLeft = document.getElementById('demo1').offsetWidth;function setdirection (d){direction = d;}function Marquee(){if(direction=='left'){if(document.getElementById('demo2').offsetWidth-document.getElementById('demo').scrollLeft<=0)document.getElementById('demo').scrollLeft -= document.getElementById('demo1').offsetWidth;else{document.getElementById('demo').scrollLeft++}}else{if(document.getElementById('demo2').offsetWidth-document.getElementById('demo').scrollLeft>=document.getElementById('demo1').offsetWidth){document.getElementById('demo').scrollLeft += document.getElementById('demo1').offsetWidth;}else{document.getElementById('demo').scrollLeft--;}}}var MyMar=setInterval(Marquee,speed)document.getElementById('demo').onmouseover=function() {clearInterval(MyMar)}document.getElementById('demo').onmouseout=function() {MyMar=setInterval(Marquee,speed)}var current = 0;function changepic (updown){if(updown=="up"){if(current>0)current--;}else if(updown=="down"){if(current<bm.length-1)current++;}else{current = arguments[1];}document.getElementById('bmodel').src = bm[current];
}