if (document.images)
{
	img1on = new Image();   img1on.src = "images/nav-about-on.gif";
	img2on = new Image();   img2on.src = "images/nav-services-on.gif";
	img3on = new Image();   img3on.src = "images/nav-profiles-on.gif";
	img4on = new Image();   img4on.src = "images/nav-press-on.gif";
	img5on = new Image();   img5on.src = "images/nav-contact-on.gif";
	img6on = new Image();   img6on.src = "images/refer-on.gif";
	img7on = new Image();   img7on.src = "images/mindsurf-credit-on.gif";
	img8on = new Image();   img8on.src = "images/nav-disclaimer-on.gif";
	img9on = new Image();   img9on.src = "images/home-on.gif";

	img1off = new Image();  img1off.src = "images/nav-about-off.gif";
	img2off = new Image();  img2off.src = "images/nav-services-off.gif";
	img3off = new Image();  img3off.src = "images/nav-profiles-off.gif";
	img4off = new Image();  img4off.src = "images/nav-press-off.gif";
	img5off = new Image();  img5off.src = "images/nav-contact-off.gif";
	img6off = new Image();  img6off.src = "images/refer-off.gif";
	img7off = new Image();  img7off.src = "images/mindsurf-credit-off.gif";
	img8off = new Image();  img8off.src = "images/nav-disclaimer-off.gif";
	img9off = new Image();  img9off.src = "images/home-off.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");        
            }
    }