if (document.images){
        link1on = new Image();
        link1on.src = "Images/buttons/schedule1.gif";
        link1off = new Image();
        link1off.src = "Images/buttons/schedule0.gif";
                
        link2on = new Image();
        link2on.src = "Images/buttons/holiday1.gif";
        link2off = new Image();
        link2off.src = "Images/buttons/holiday0.gif";
        
        link3on = new Image();
        link3on.src = "Images/buttons/flight1.gif";
        link3off = new Image();
        link3off.src = "Images/buttons/flight0.gif";
        
        link4on = new Image();
        link4on.src = "Images/buttons/ski1.gif";
        link4off = new Image();
        link4off.src = "Images/buttons/ski0.gif";        

        link5on = new Image();
        link5on.src = "Images/buttons/cruise1.gif";
        link5off = new Image();
        link5off.src = "Images/buttons/cruise0.gif";

        link6on = new Image();
        link6on.src = "Images/buttons/insurance1.gif";
        link6off = new Image();
        link6off.src = "Images/buttons/insurance0.gif";        
        
        link7on = new Image();
        link7on.src = "Images/buttons/car1.gif";
        link7off = new Image();
        link7off.src = "Images/buttons/car0.gif";        

        link8on = new Image();
        link8on.src = "Images/buttons/hotel1.gif";
        link8off = new Image();
        link8off.src = "Images/buttons/hotel0.gif";

        link9on = new Image();
        link9on.src = "Images/buttons/park1.gif";
        link9off = new Image();
        link9off.src = "Images/buttons/park0.gif";

        link10on = new Image();
        link10on.src = "Images/buttons/lounge1.gif";
        link10off = new Image();
        link10off.src = "Images/buttons/lounge0.gif";}        
        
function img_act(imgName) {
       
        if (document.images) {
	imgOn = eval(imgName + "on.src");
        document [imgName].src = imgOn;}
}

function img_inact(imgName) {
        
	if (document.images) {
	imgOff = eval(imgName + "off.src");
        document [imgName].src = imgOff;}
}