var image1a = new Image(); // inact image
 image1a.src = "navbutton.php?text=HOME&mode=off";
 var image1b = new Image(); // act image
 image1b.src = "navbutton.php?text=HOME&mode=on";

 var image2a = new Image(); // inact image
 image2a.src = "navbutton.php?text=WHY REDMAIL&mode=off";
 var image2b = new Image(); // act image
 image2b.src = "navbutton.php?text=WHY REDMAIL&mode=on";

 var image3a = new Image(); // inact image
 image3a.src = "navbutton.php?text=FEATURES&mode=off";
 var image3b = new Image(); // act image
 image3b.src = "navbutton.php?text=FEATURES&mode=on";

 var image4a = new Image(); // inact image
 image4a.src = "navbutton.php?text=BILLING&mode=off";
 var image4b = new Image(); // act image
 image4b.src = "navbutton.php?text=BILLING&mode=on";

 var image5a = new Image(); // inact image
 image5a.src = "navbutton.php?text=HELP!&mode=off";
 var image5b = new Image(); // act image
 image5b.src = "navbutton.php?text=HELP!&mode=on";

 var image6a = new Image(); // inact image
 image6a.src = "navbutton.php?text=JOIN TODAY&mode=off";
 var image6b = new Image(); // act image
 image6b.src = "navbutton.php?text=JOIN TODAY&mode=on";

 var image7a = new Image(); // inact image
 image7a.src = "navbutton.php?text=SUPPORT&mode=off";
 var image7b = new Image(); // act image
 image7b.src = "navbutton.php?text=SUPPORT&mode=on";

 var image8a = new Image(); // inact image
 image8a.src = "navbutton.php?text=WEBMAIL&mode=off";
 var image8b = new Image(); // act image
 image8b.src = "navbutton.php?text=WEBMAIL&mode=on";