if(navigator.appName.indexOf("WebTV") != -1)
   var x=1
else 
 { 
var x=1
var cp=0,alt=1,curpos1=0,curpos2=-1
function initialize(){
startit()
}
function sw(){
if (document.all)
temp=document.body.scrollTop
else
temp=window.pageYOffset
if (alt==0)
alt=2
else
alt=1
if (alt==0)
curpos1=temp
else
curpos2=temp
if (curpos1!=curpos2){
if (document.all)
cp=document.body.scrollTop+x
else
cp=window.pageYOffset+x
window.scroll(0,cp)
}
else{
cp=0
window.scroll(0,cp)
}
}
function startit(){
setInterval("sw()",50)
}
window.onload=initialize
}