var speed, currentpos=curpos1=0,alt=1,curpos2=-1

function slideit(){
if (window.parent.mainslidespeed!=0){
speed=window.parent.mainslidespeed
slidewindow()
}
}

function slidewindow(){
temp=(document)? document.body.scrollLeft : window.pageXOffset
alt=(alt==0)? 0 : 1
if (alt==0)
curpos1=temp
else
curpos2=temp

window.scrollBy(speed,0)
}

//setInterval("slideit()",10)