        <!--
                if (document.images) {
        // Active Images                                       
            img1on = new Image();
            img1on.src = "img/nav/btn_register2009_on.gif";
            img1off = new Image();
            img1off.src = "img/nav/btn_register2009.gif";
            img2on = new Image();
            img2on.src = "img/nav/nav_home_on.gif";
            img2off = new Image();
            img2off.src = "img/nav/nav_home.gif";
			img3on = new Image();
            img3on.src = "img/nav/nav_about_on.gif";
            img3off = new Image();
            img3off.src = "img/nav/nav_about.gif";
            img4on = new Image();
            img4on.src = "img/nav/nav_agenda_on.gif";
            img4off = new Image();
            img4off.src = "img/nav/nav_agenda.gif";
            img5on = new Image();
            img5on.src = "img/nav/nav_speakers_on.gif";
            img5off = new Image();
            img5off.src = "img/nav/nav_speakers.gif";
            img6on = new Image();
            img6on.src = "img/nav/nav_registration_on.gif";
            img6off = new Image();
            img6off.src = "img/nav/nav_registration.gif";
            
			img7on = new Image();
            img7on.src = "img/nav/nav_travel_on.gif";
            img7off = new Image();
            img7off.src = "img/nav/nav_travel.gif";
			img8on = new Image();
            img8on.src = "img/nav/nav_stewards_on.gif";
            img8off = new Image();
            img8off.src = "img/nav/nav_stewards.gif";
            img9on = new Image();
            img9on.src = "img/nav/nav_contact_on.gif";
            img9off = new Image();   
            img9off.src = "img/nav/nav_contact.gif";

        }
        
        // 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");
                }
        }
		// -->