        <!--
                if (document.images) {
        // Active Images                                       
            img1on = new Image();
            img1on.src = "img/nav/home_on.gif";
            img2on = new Image();
            img2on.src = "img/nav/working_on.gif";
            img3on = new Image();
            img3on.src = "img/nav/properties_on.gif";
            img4on = new Image();
            img4on.src = "img/nav/contact_on.gif";
                                                                             
            img1off = new Image();
            img1off.src = "img/nav/home.gif";
            img2off = new Image();
            img2off.src = "img/nav/working.gif";
            img3off = new Image();                    
            img3off.src = "img/nav/properties.gif";
            img4off = new Image();
            img4off.src = "img/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");
                }
        }
		// -->