var mousex,mousey;
 function handlerMouse(e){
  mousex = e.pageX;
  mousey = e.pageY;
 }

 if (navigator.appName == "Netscape") {
  document.captureEvents(Event.MOUSEMOVE);
  document.onmousemove = handlerMouse;
 }

 function xwShowLayer(layerName) {
  if (navigator.appName == "Netscape") {
   eval('document.layers'+'["'+layerName+'"]'+'.left='+mousex);
   eval('document.layers'+'["'+layerName+'"]'+'.top='+mousey);
   eval('document.layers'+'["'+layerName+'"]'+'.visibility="visible"');
  } else {
   eval('document.all'+'["'+layerName+'"]'+'.style.visibility="visible"');
  }
 }
        
 function xwHideLayer(layerName) {
  if (navigator.appName == "Netscape") {
   eval('document.layers'+'["'+layerName+'"]'+'.visibility="hidden"');
  } else {
   eval('document.all'+'["'+layerName+'"]'+'.style.visibility="hidden"');
  }
 }