function FindID(id) 
{ 
	if(document.layers) 
		return document.layersid; 

	if(document.all && !document.getElementById) 
		return document.allid; 

	if(document.all && document.getElementById) 
		return document.getElementById(id); 
	
	if(!document.all && document.getElementById) 
		return document.getElementById(id); 
} 


var quickness = 40;     
var unitary_shift = 20; 
var current_shift = 0;  
var actif;
var test = "on";
function startMoveLeft(speed) 
{
	actif = setInterval('moveLeft('+speed+')',quickness);
} 

function startMoveRight(speed) 
{
	actif = setInterval('moveRight('+speed+')',quickness);
} 

function stopMove() 
{
 if(test=="on") {	clearInterval(actif); test="off"; bordure.src="../images/brd-tpl-cachedroite-start.gif"; }
  else   { actif = setInterval('moveLeft(0.2)',quickness);  test="on"; bordure.src="../images/brd-tpl-cachedroite-stop.gif";  }
} 

function moveLeft(speed) 
{
	var objImg  = FindID('div_pic');
	current_shift += unitary_shift*speed;
	
	objImg.style.backgroundPosition = current_shift+'px 0px';	

} 

function moveRight(speed) 
{
	var objImg  = FindID('div_pic');
	current_shift -= unitary_shift*speed;
	
	objImg.style.backgroundPosition = current_shift+'px 0px';
}