<!--
var tp_image_path = "images/buttons/"

if (document.images) 
  {
	// On images
	image1on = new Image();
	image1on.src = tp_image_path + "button(dBB)dn.png";
	image2on = new Image();
	image2on.src = tp_image_path + "button(dBS)dn.png";
	image3on = new Image();
	image3on.src = tp_image_path + "button(OT)dn.png";
	image4on = new Image();
	image4on.src = tp_image_path + "button(II)dn.png";
  
  
	// Off images
	image1off = new Image();
	image1off.src = tp_image_path + "button(dBB)up.png";
	image2off = new Image();
	image2off.src = tp_image_path + "button(dBS)up.png";
	image3off = new Image();
	image3off.src = tp_image_path + "button(OT)up.png";
	image4off = new Image();
	image4off.src = tp_image_path + "button(II)up.png";

  }
 
function act(imgName, imgNum) {

  if (document.images)
    document[imgName].src = eval(imgName + 'on.src')
  }

function inact(imgName) {
  if (document.images)
    document[imgName].src = eval(imgName + 'off.src')
  }

// -->