function scrolling(nb,delay,increment) {
	pixmax=nb; delai=delay; pix=0; inc=increment
	setTimeout("scroll()",delai);
}

function scroll() {
	pix=pix+inc;
	self.scrollBy(inc,0);
	if(inc>0) if (pix<pixmax) {setTimeout("scroll()",delai);}
	if(inc<0) if (pix>pixmax) {setTimeout("scroll()",delai);}
}