clicEnCours = false;
	position_x = 20;
	position_y = 20;
	netscape = false;
	if(navigator.appName.substring(0,8) == 'Netscape')
	   {
		netscape = true;
	   }
	
	function boutonPresse(div_id)
	   {
		div = document.getElementById(div_id);
		origine_x = x - position_x;
		origine_y = y - position_y;
		clicEnCours = true;
	   }
	
	function boutonRelache(div_id)
	   {
		div = document.getElementById(div_id);
		clicEnCours = false;
	   }
	
	function deplacementSouris(e)
	   {
		x = (netscape) ? e.pageX : event.x + document.body.scrollLeft;
		y = (netscape) ? e.pageY : event.y + document.body.scrollTop;
		
		if (clicEnCours && document.getElementById)
		   {
			position_x = x - origine_x;
			position_y = y - origine_y;
			div.style.left = position_x
			div.style.top = position_y
		   }
	   }
	
	if (netscape)
	  {
		document.captureEvents(Event.MOUSEMOVE);
	  }

	document.onmousemove = deplacementSouris;