var speed = 0; 
var quibouge; 
function lenom(sonnom){quibouge= sonnom;}
function scroll(to_scroll, no_speed_change){
	
	if(!no_speed_change) speed = to_scroll; 
	if(speed !=0){
		document.getElementById(quibouge).scrollTop += (speed*2); 
		setTimeout('scroll('+to_scroll+', '+true+')', 10);
	}
}