窗口自动上升

主页：

<script language="javascript">

var vDialog=null; function ShowForm() { vDialog=window.open("NewForm.aspx",null,'height=200,width=400,top=800;status=yes,toolbar=no,menubar=no,location=no'); }

</script> 

窗口页：（NewForm.aspx）

<script>

     var Famount=0;

function MoveUp()
{
Famount=Famount+20;

if(Famount<document.body.scrollHeight)
{
window.moveBy(0,-20);
}
else
{
window.clearInterval(tim);

}
}

var tim;

//开始调用方法 
function MovStart()
{

tim=window.setInterval("MoveUp()",70);


}

</script>