<!-- Beginning of JavaScript -
        if (document.images) {
           img1on = new Image();
           img1on.src = "images/nav_home-on.gif";
		   img2on = new Image();
           img2on.src = "images/nav_bettyblue-on.gif";
           img3on = new Image();
           img3on.src = "images/nav_grenadines-on.gif";
           img4on = new Image();
           img4on.src = "images/nav_gallery-on.gif";
           img5on = new Image();
           img5on.src = "images/nav_contact-on.gif";
           img6on = new Image();
           img6on.src = "images/nav_charter-on.gif";

           img1off = new Image();
           img1off.src = "images/nav_home-off.gif";
		   img2off = new Image();
           img2off.src = "images/nav_bettyblue-off.gif";
           img3off = new Image();
           img3off.src = "images/nav_grenadines-off.gif";
           img4off = new Image();
           img4off.src = "images/nav_gallery-off.gif";
           img5off = new Image();
           img5off.src = "images/nav_contact-off.gif";
           img6off = new Image();
           img6off.src = "images/nav_charter-off.gif";
 
        }
// Function to 'activate' images.
function imgOn(imgName) {
        if (document.images) {
            document[imgName].src = eval(imgName + "on.src");
//          document["holder"].src = eval(imgName + "ad.src");
        }
}
// Function to 'deactivate' images.
function imgOff(imgName) {
        if (document.images) {
            document[imgName].src = eval(imgName + "off.src");
//          document["holder"].src = "clear.gif";
        }
}
// - End of JavaScript - -->