var u = 0;

function loadImg(galleri,imgNum) {
	document.images['mainImg'].src="img/pix.gif";
	document.images['mainImg'].src="bilder/"+galleri+"/bild"+imgNum+".jpg";
	document.getElementById('mainImg').style.filter="alpha(opacity=" + u + ")";
	document.getElementById('mainImg').style.MozOpacity=u/100;
	t = setTimeout("restoreOpac()",100);
}

function restoreOpac() {
	if (u==100) {
		u=0;
	}
	else {
		u=u+20;
		document.getElementById('mainImg').style.filter="alpha(opacity=" + u + ")";
		document.getElementById('mainImg').style.MozOpacity=u/100;
		t = setTimeout("restoreOpac()",10);
	}
}