<!--
var base = "images/";

        if (document.images) {            

            img1on = new Image();   img1on.src = base + "enav1b.gif"; 
            img2on = new Image();   img2on.src = base + "enav2b.gif"; 
            img3on = new Image();   img3on.src = base + "enav3b.gif"; 
            img4on = new Image();   img4on.src = base + "enav4b.gif"; 
            img5on = new Image();   img5on.src = base + "enav5b.gif"; 
            img6on = new Image();   img6on.src = base + "enav6b.gif"; 
            img7on = new Image();   img7on.src = base + "enav7b.gif"; 
			img8on = new Image();   img8on.src = base + "enav8b.gif"; 
			
            img1off = new Image();  img1off.src = base + "enav1a.gif"; 
            img2off = new Image();  img2off.src = base + "enav2a.gif"; 
            img3off = new Image();  img3off.src = base + "enav3a.gif";
            img4off = new Image();  img4off.src = base + "enav4a.gif";
            img5off = new Image();  img5off.src = base + "enav5a.gif"; 
            img6off = new Image();  img6off.src = base + "enav6a.gif";
            img7off = new Image();  img7off.src = base + "enav7a.gif";
			img8off = new Image();  img8off.src = base + "enav8a.gif";
            }



    function imgOn(imgName) {

            if (document.images) {

                document[imgName].src = eval(imgName + "on.src");     
                 
                 


            }

    }


    function imgOff(imgName) {

            if (document.images) {

                document[imgName].src = eval(imgName + "off.src");  
               

            }
    }

//>