<!--

function FindImage(ImgName)
  {
  if (document.images)
    {
    for (var i = 0; i < document.images.length; i++)
      {if (document.images[i].name == ImgName) {return i;}}
	}
  animOn = false;
  return -1; 
  }

  
function OverEvent(Idx)
  {
  var MenuBase = FindImage("menuBase");
  if (animOn) {document.images[MenuBase + Idx * 3 ].src = imgLampOn.src;}
  return true;
  }
  
  
function OutEvent(Idx)
  {
  var MenuBase = FindImage("menuBase");
  if (animOn) {document.images[MenuBase + Idx * 3 ].src = imgLampOff.src;}
  return true;
  }
  
  
function ClickEvent(Idx)
  {
  var MenuBase = FindImage("menuBase");
  var MenuEnd = FindImage("menuEnd");
  if (animOn)
    {
    //clear triangles
	for (var i = MenuBase + 2; i <= MenuEnd; i++)
	  {
	  Img = document.images[i];
	  if (Img.src == imgTriOn.src) {Img.src = imgTriOff.src;}
	  }
	document.images[MenuBase + Idx * 3 ].src = imgLampOff.src;
    document.images[MenuBase + Idx * 3 + 2].src = imgTriOn.src;
	}
  return true;
  }
  
function SetMenuSelection(Idx)
  {
  var MenuBase = FindImage("menuBase");
  if (MenuBase > -1)
    {document.images[MenuBase + Idx * 3 + 2].src = imgTriOn.src;}
  }  

  //check browser version
  var brwName = navigator.appName;
  var brwVer = parseInt(navigator.appVersion);
  var animOn = (brwName == "Netscape" && brwVer >= 3) || 
    (brwName == "Microsoft Internet Explorer" && brwVer >= 4);

  
  //pre-load images
  if (animOn)
    {
	imgLampOn = new Image;
    imgLampOn.src = "menu/lamp_on.gif";
  
	imgLampOff = new Image;
    imgLampOff.src = "menu/lamp_off.gif";
  
	imgTriOn = new Image;
    imgTriOn.src = "menu/tri_on.gif";
  
	imgTriOff = new Image;
    imgTriOff.src = "menu/tri_off.gif";
    }
    
//-->