var loaded = false;

if (document.images) {
    img1off = new Image();img1off.src = "images/anasayfa1.gif";
    img2off = new Image();img2off.src = "images/gap1.gif";
	img3off = new Image();img3off.src = "images/basari1.gif";
	img4off = new Image();img4off.src = "images/iletisim1.gif";
}


function imageLoad() {
    if (document.images) {
        img1on = new Image();img1on.src = "images/anasayfa2.gif";
        img2on = new Image();img2on.src = "images/gap2.gif";
		img3on = new Image();img3on.src = "images/basari2.gif";
		img4on = new Image();img4on.src = "images/iletisim2.gif";
        return (loaded = true);
    }
}

function rollOut(imgName) {
    if (document.images) {
        document[imgName].src = eval(imgName+"off.src");
    }
}

function rollIn(imgName) {
    if (document.images && (loaded == true)) {
        document[imgName].src = eval(imgName+"on.src");
    }
}