function doImages(){
	
			img1on = new Image();
            img1on.src = "img/navi1_2.jpg";

            img1off = new Image();
            img1off.src = "img/navi1.jpg";
			
			img2on = new Image();
            img2on.src = "img/navi2_2.jpg";

            img2off = new Image();
            img2off.src = "img/navi2.jpg";
			
			img3on = new Image();
            img3on.src = "img/navi3_2.jpg";

            img3off = new Image();
            img3off.src = "img/navi3.jpg";
			
			img4on = new Image();
            img4on.src = "img/navi4_2.jpg";

            img4off = new Image();
            img4off.src = "img/navi4.jpg";
			
			img5on = new Image();
            img5on.src = "img/navi5_2.jpg";

            img5off = new Image();
            img5off.src = "img/navi5.jpg";
			
			img6on = new Image();
            img6on.src = "img/navi6_2.jpg";

            img6off = new Image();
            img6off.src = "img/navi6.jpg";
			
			img7on = new Image();
            img7on.src = "img/navi7_2.jpg";

            img7off = new Image();
            img7off.src = "img/navi7.jpg";
	
}

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");
        }
}