function changeImage(imgDocID,imgObjName)
      {
         if (ImageObj)
         {
            document.images[imgDocID].src = eval(imgObjName + '.src')
         }
      }

      var ImageObj = 0;
      if (document.images)
      {
         ImageObj = 1;
about = new Image(0,0);
about.src = 'images/about-raincampaign-off.jpg';
about2 = new Image(0,0);
about2.src = 'images/about-raincampaign-ani.gif';
projects = new Image(0,0);
projects.src = 'images/projects-off.jpg';
projects2 = new Image(0,0);
projects2.src = 'images/projects-ani.gif';
rainforestsupport = new Image(0,0);
rainforestsupport.src = 'images/rainforest-support-off.jpg';
rainforestsupport2 = new Image(0,0);
rainforestsupport2.src = 'images/rainforest-support-ani.gif';
press = new Image(0,0);
press.src = 'images/press-off.jpg';
press2 = new Image(0,0);
press2.src = 'images/press-ani.gif';
contact = new Image(0,0);
contact.src = 'images/contact-off.jpg';
contact2 = new Image(0,0);
contact2.src = 'images/contact-ani.gif';
      }