blueled_on = "../pics/blueled_on.gif"
  blueled_off = "../pics/blueled_off.gif"
  next_on = "../pics/next_on.gif"
  next_off = "../pics/next_off.gif"
  prev_on = "../pics/prev_on.gif"
  prev_off = "../pics/prev_off.gif"
  close_on = "../pics/close_on.gif"
  close_off = "../pics/close_off.gif"
  clip_on = "../pics/paperclip_on.gif"
  clip_off = "../pics/paperclip_off.gif"
 
  function img_on(imgName, imgtype) {
	if (imgtype == "blueled"){
        document [imgName].src = blueled_on;
        }
      else if (imgtype == "next"){
	  document [imgName].src = next_on;
        }
      else if (imgtype == "prev"){
        document [imgName].src = prev_on;
        }
      else if (imgtype == "close"){
        document [imgName].src = close_on;
        }
      else if (imgtype == "clip"){
         document [imgName].src = clip_on;
         }
	}

  function img_off(imgName, imgtype){
	if (imgtype == "blueled"){
        document [imgName].src = blueled_off;
        }
      else if (imgtype == "next"){
	  document [imgName].src = next_off;
        }
      else if (imgtype == "prev"){
        document [imgName].src = prev_off;
        }
      else if (imgtype == "close"){
        document [imgName].src = close_off;
        }
      else if (imgtype == "clip"){
         document [imgName].src = clip_off;
         }
	}