image1off = new Image(); 
image1off.src = "/common/images/navigation/top/updates.gif";
image1on = new Image(); 
image1on.src = "/common/images/navigation/top/updates-over.gif";
image2off = new Image(); 
image2off.src = "/common/images/navigation/top/events.gif";
image2on = new Image(); 
image2on.src = "/common/images/navigation/top/events-over.gif";
image3off = new Image(); 
image3off.src = "/common/images/navigation/top/trails.gif";
image3on = new Image(); 
image3on.src = "/common/images/navigation/top/trails-over.gif";
image4off = new Image(); 
image4off.src = "/common/images/navigation/top/get-involved.gif";
image4on = new Image(); 
image4on.src = "/common/images/navigation/top/get-involved-over.gif";