Tabfun
<!DOCTYPE html>
<html>
<head>
<title>HELP</title>
<style>
span {
background: blue;
color: purple;
}
div{
display: inline-block;
}
body{background: #CCCCFF;
transition: background 0.5s linear;}
</style>
</head>
<body>
<script>
window.addEventListener("beforeunload", function( event ) {
for (i = 0; i < 2; i++) {
var ntab=window.open("HELP.html");
//ntab.document.write("more fun");
}
});
</script>
</body>
</html>