// 导航特效
<!-- beginning of javascript code -------------------

nereidfadeobjects = new object();
nereidfadetimers = new object();
function nereidfade(object, destop, rate, delta){
if (!document.all)
return
    if (object != "[object]"){ settimeout("nereidfade("+object+","+destop+","+rate+","+delta+")",0);
        return;
    }
    cleartimeout(nereidfadetimers[object.sourceindex]);
    diff = destop-object.filters.alpha.opacity;
    direction = 1;
    if (object.filters.alpha.opacity > destop){
        direction = -1;
    }
    delta=math.min(direction*diff,delta);
    object.filters.alpha.opacity+=direction*delta;
    if (object.filters.alpha.opacity != destop){
        nereidfadeobjects[object.sourceindex]=object;
        nereidfadetimers[object.sourceindex]=settimeout("nereidfade(nereidfadeobjects["+object.sourceindex+"],"+destop+","+rate+","+delta+")",rate);
    }
}
// -- end of javascript code -->