急用，可行立马给分
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双击自动滚屏代码varcurrentpos，timer;functioninitialize(){timer=setInterval("scrollwindow()"，10);}functionsc(){clearInterval(timer);}functionscrollwindow(){currentpos=document.body.scrollTop;window.scroll(0，++currentpos);if(currentpos!=document.body.scrollTop)sc();}document.onmousedown=scdocument.ondblclick=initialize