if(document.layers)document.captureEvents(Event.mousemove);
if(document.all||document.layers)document.onmousemove = track;
divref = (document.all) ? "" : "document.";
stlref = (document.all) ? "style." : "";
function track(e){
var x = (document.all) ? event.x : e.pageX;
var y = (document.all) ? event.y : e.pageY;
if( x<0 || x>71 || y<0 || y>27 ) eval( divref + "a." + stlref + "visibility = 'hidden'");
if( x<0 || x>109 || y<0 || y>27 ) eval( divref + "b." + stlref + "visibility = 'hidden'");
if( x<0 || x>117 || y<0 || y>27 ) eval( divref + "c." + stlref + "visibility = 'hidden'");
if( x<0 || x>83 || y<0 || y>27 ) eval( divref + "d." + stlref + "visibility = 'hidden'"); }
function reveal(menu){
eval( divref + menu + "." + stlref + "visibility = 'visible'"); }