but1on = new Image();but1on.src='imgs/butpopon.jpg';but1off = new Image();but1off.src='imgs/butpop.jpg';
but2on = new Image();but2on.src='imgs/butbuyon.jpg';but2off = new Image();but2off.src='imgs/butbuy.jpg';
but3on = new Image();but3on.src='imgs/butdemoon.jpg';but3off = new Image();but3off.src='imgs/butdemo.jpg';
but4on = new Image();but4on.src='imgs/butfaqon.jpg';but4off = new Image();but4off.src='imgs/butfaq.jpg';
but5on = new Image();but5on.src='imgs/butnewson.jpg';but5off = new Image();but5off.src='imgs/butnews.jpg';
but6on = new Image();but6on.src='imgs/butprivacyon.jpg';but6off = new Image();but6off.src='imgs/butprivacy.jpg';

function butOn(imgName) {if (document.images) {if (activebuton!=imgName) {document[imgName].src = eval(imgName + "on.src");}}}
function butOff(imgName) {if (document.images) {if (activebuton!=imgName) {document[imgName].src = eval(imgName + "off.src");}}}