<!--
        if (document.images) {            // Active Images
            img1on = new Image();      
            img1on.src = "images/nav1_01.jpg"; 
            img2on = new Image(); 
            img2on.src = "images/nav1_02.jpg";  
            img3on = new Image();
            img3on.src = "images/nav1_03.jpg";
            img4on = new Image();
            img4on.src = "images/nav1_04.jpg";
            img5on = new Image();
            img5on.src = "images/nav1_05.jpg";
            img6on = new Image();
            img6on.src = "images/nav1_06.jpg";
            img7on = new Image();
            img7on.src = "images/nav1_07.jpg";
            img8on = new Image();      
            img8on.src = "images/nav1_08.jpg"; 
            img9on = new Image(); 
            img9on.src = "images/subnav1_01.jpg";  
            img10on = new Image();
            img10on.src = "images/subnav1_02.jpg"; 
            img11on = new Image();
            img11on.src = "images/subnav1_03.jpg"; 
            img12on = new Image();
            img12on.src = "images/subnav1_04.jpg"; 
            img13on = new Image(); 
            img13on.src = "images/topnav1_01.gif";  
            img14on = new Image();
            img14on.src = "images/topnav1_02.gif"; 
            img15on = new Image();
            img15on.src = "images/topnav1_03.gif"; 
            img16on = new Image();
            img16on.src = "images/topnav1_04.gif";  
            img17on = new Image();
            img17on.src = "images/headnav1_01.jpg";  
            img18on = new Image();
            img18on.src = "images/headnav1_02.jpg";  
            img19on = new Image();
            img19on.src = "images/headnav1_03.jpg";  
            img20on = new Image();
            img20on.src = "images/headnav1_04.jpg"; 

            img1off = new Image(); 
            img1off.src = "images/nav_01.jpg"; 
            img2off = new Image();          
            img2off.src = "images/nav_02.jpg"; 
            img3off = new Image();
            img3off.src = "images/nav_03.jpg";
            img4off = new Image();
            img4off.src = "images/nav_04.jpg";
            img5off = new Image();
            img5off.src = "images/nav_05.jpg";
            img6off = new Image();
            img6off.src = "images/nav_06.jpg";
            img7off = new Image();
            img7off.src = "images/nav_07.jpg";
            img8off = new Image(); 
            img8off.src = "images/nav_08.jpg"; 
            img9off = new Image();          
            img9off.src = "images/subnav_01.jpg"; 
            img10off = new Image();
            img10off.src = "images/subnav_02.jpg"; 
            img11off = new Image();
            img11off.src = "images/subnav_03.jpg"; 
            img12off = new Image();
            img12off.src = "images/subnav_04.jpg"; 
            img13off = new Image();          
            img13off.src = "images/topnav_01.gif"; 
            img14off = new Image();
            img14off.src = "images/topnav_02.gif"; 
            img15off = new Image();
            img15off.src = "images/topnav_03.gif"; 
            img16off = new Image();
            img16off.src = "images/topnav_04.gif"; 
            img17off = new Image();
            img17off.src = "images/headnav_01.jpg"; 
            img18off = new Image();
            img18off.src = "images/headnav_02.jpg"; 
            img19off = new Image();
            img19off.src = "images/headnav_03.jpg"; 
            img20off = new Image();
            img20off.src = "images/headnav_04.jpg"; 
 
        }

// Function to 'activate' images.

function imgOn(imgName) {
        if (document.images) {
            document[imgName].src = eval(imgName + "on.src");
        }
}

// Function to 'deactivate' images.

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

//  -->