双击自动滚屏

<script language="javascript">

var currentpos,timer;
function initialize()
{
timer=setInterval("scrollwindow()",10);
}
function sc(){
clearInterval(timer);
}
function scrollwindow()
{
currentpos=document.body.scrollTop;
window.scroll(0,++currentpos);
if (currentpos != document.body.scrollTop)
sc();
}
document.onmousedown=sc
document.ondblclick=initialize
ie = (document.all)? true:false
if (ie){
function ctlent(eventobject){if(event.ctrlKey && window.event.keyCode==13){this.document.FORM.submit();}}
}
clckcnt = 0;

</script>