if (document.images) {
            img1on = new Image();
            img1on.src ="images/picmenu_r.gif";
			img2on = new Image();
            img2on.src ="images/picmenu_r.gif";
			img3on = new Image();
            img3on.src ="images/picmenu_r.gif";
			img4on = new Image();
            img4on.src ="images/picmenu_r.gif";
			img5on = new Image();
            img5on.src ="images/picmenu_r.gif";
			img6on = new Image();
            img6on.src ="images/picmenu_r.gif";
			img7on = new Image();
            img7on.src ="images/picmenu_r.gif";
			img8on = new Image();
            img8on.src ="images/picmenu_r.gif";
            
            img1off = new Image();
            img1off.src ="images/picmenu.gif";
			img2off = new Image();
            img2off.src ="images/picmenu.gif";
			img3off = new Image();
            img3off.src ="images/picmenu.gif";
			img4off = new Image();
            img4off.src ="images/picmenu.gif";
			img5off = new Image();
            img5off.src ="images/picmenu.gif";
			img6off = new Image();
            img6off.src ="images/picmenu.gif";
			img7off = new Image();
            img7off.src ="images/picmenu.gif";
			img8off = new Image();
            img8off.src ="images/picmenu.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");
        }
}