function roll_over(image, img_name, img_src)
   {
    if (document.images != null)
       {
          image.src = img_src;
       }
   }

if (document.images)
   {
    info_menuon = new Image();
    info_menuoff = new Image();
    imag_menuon = new Image();
    imag_menuoff = new Image();
    elec_menuon = new Image();
    elec_menuoff = new Image();
    spor_menuon = new Image();
    spor_menuoff = new Image();
    idee_menuon = new Image();
    idee_menuoff = new Image();
    espa_menuon = new Image();
    espa_menuoff = new Image();
	mais_menuon = new Image();
    mais_menuoff = new Image();
	gast_menuon = new Image();
    gast_menuoff = new Image();
	voir_menuon = new Image();
    voir_menuoff = new Image();
	
    info_menuon.src = "/images/info_menuon.png";
    info_menuoff.src = "/images/info_menu.png";
    imag_menuon.src = "/images/imag_menuon.png";
    imag_menuoff.src = "/images/imag_menu.png";
    elec_menuon.src = "/images/elec_menuon.png";
    elec_menuoff.src = "/images/elec_menu.png";
    spor_menuon.src = "/images/spor_menuon.png";
    spor_menuoff.src = "/images/spor_menu.png";
    idee_menuon.src = "/images/idee_menuon.png";
    idee_menuoff.src = "/images/idee_menu.png";
    espa_menuon.src = "/images/espa_menuon.png";
    espa_menuoff.src = "/images/espa_menu.png";
	mais_menuon.src = "/images/mais_menuon.png";
    mais_menuoff.src = "/images/mais_menu.png";
	gast_menuon.src = "/images/gast_menuon.png";
    gast_menuoff.src = "/images/gast_menu.png";
	voir_menuon.src = "/images/voir_menuon.png";
    voir_menuoff.src = "/images/voir_menu.png";
   }
function turnOn(imageName)
   {
    if (document.images != null)
       {
        document[imageName].src =
            eval(imageName.substring(0, imageName.length ) + "on.src");
       }
   }
function turnOff(imageName)
   {
    if (document.images != null)
       {
        document[imageName].src =
            eval(imageName.substring(0, imageName.length ) + "off.src");
       }
   }