agent = navigator.userAgent;
  yes = 0;
  if(agent.substring(0,7) == "Mozilla")
    {
    if( parseInt(agent.substring(8,9)) >= 3)
      {
      yes = 1;
      }
    }

  if(yes)
    {
                                  pc1n = new Image();
      pc1n.src = "./images/pcpa1.gif";
      pc1h = new Image();
      pc1h.src = "./images/pcpah1.gif";

                                  pc2n = new Image();
      pc2n.src = "./images/pcpa2.gif";
      pc2h = new Image();
      pc2h.src = "./images/pcpah2.gif";

                                  pc3n = new Image();
      pc3n.src = "./images/pcpa3.gif";
      pc3h = new Image();
      pc3h.src = "./images/pcpah3.gif";

                                  pc4n = new Image();
      pc4n.src = "./images/pcpa4.gif";
      pc4h = new Image();
      pc4h.src = "./images/pcpah4.gif";

                                  pc5n = new Image();
      pc5n.src = "./images/pcpa5.gif";
      pc5h = new Image();
      pc5h.src = "./images/pcpah5.gif";

                                  pc6n = new Image();
      pc6n.src = "./images/pcpa6.gif";
      pc6h = new Image();
      pc6h.src = "./images/pcpah6.gif";

                                  pc7n = new Image();
      pc7n.src = "./images/pcpa7.gif";
      pc7h = new Image();
      pc7h.src = "./images/pcpah7.gif";

                                  pc8n = new Image();
      pc8n.src = "./images/pcpa8.gif";
      pc8h = new Image();
      pc8h.src = "./images/pcpah8.gif";

                                  pc9n = new Image();
      pc9n.src = "./images/pcpa9.gif";
      pc9h = new Image();
      pc9h.src = "./images/pcpah9.gif";

                                  pc10n = new Image();
      pc10n.src = "./images/pcpa10.gif";
      pc10h = new Image();
      pc10h.src = "./images/pcpah10.gif";

                                  pc11n = new Image();
      pc11n.src = "./images/pcpa11.gif";
      pc11h = new Image();
      pc11h.src = "./images/pcpah11.gif";

                                  pc13n = new Image();
      pc13n.src = "./images/pcpa13.gif";
      pc13h = new Image();
      pc13h.src = "./images/pcpah13.gif";

                                    pc14n = new Image();
      pc14n.src = "./images/pcpa14.gif";
      pc14h = new Image();
      pc14h.src = "./images/pcpah14.gif";

                                    pc16n = new Image();
      pc16n.src = "./images/pcpa16.gif";
      pc16h = new Image();
      pc16h.src = "./images/pcpah16.gif";
          }
  function CI(imgNum,imgName)
        {
        if(yes)
          {
          document.images[imgNum].src = eval(imgName + ".src")
          }
        }