<!--
	browserName = navigator.appName;          
        browserVer = parseInt(navigator.appVersion);
		 
        if ((browserName == "Netscape" && browserVer >= 3) || (browserName == "Microsoft Internet Explorer" && browserVer >= 4))
			version = "yes";
	else version = "no";
			
	if (version == "yes")
	{
        	fleche_on = new Image(); 
        	fleche_on.src = "./images/fleche_on.gif";
		fleche_off = new Image(); 
        	fleche_off.src = "./images/fleche_off.gif";
	}
		
        function img_act(imgName)
        {
	        if (version == "yes") 
 		{
   	             document [imgName].src = fleche_on.src;
                }
        }

        function img_inact(imgName)
        {
	        if (version == "yes") 
 	               {
  	              document [imgName].src = fleche_off.src;
   	             }
        }
//-->