我做的网站,在打开网站时可以正常访问浏览,但是浏览时,IE浏览器左下角会出现'null'为空或不是对象的错误,请大家帮我分析一下,是哪里有错误。截图如下:部分代码如下:<script> function myGod(id,w,n){ var box=document.getElementById(id),can=true,w=w||1500,fq=fq||10,n=n==-1?-1:1; box.innerHTML+=box.innerHTML; box.onmouseover=function(){can=false}; box.onmouseout=function(){can=true}; var max=parseInt(box.scrollHeight/2); new function (){ var stop=box.scrollTop%24==0&&!can; if(!stop){ var set=n>0?[max,0]:[0,max]; box.scrollTop==set[0]?box.scrollTop=set[1]:box.scrollTop+=n; }; setTimeout(arguments.callee,box.scrollTop%24?fq:w); }; };myGod('div4',1000); </script>