function ietruebody(){
    return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body;
}
function DV_DivSempreAlTop() {
    // @author davide.vicario
    var startX = 5,
    startY = window.innerHeight ? window.innerHeight/2 - 50 : ietruebody().clientHeight/2 - 50; //trick per il centro pagina
    var ns = (navigator.appName.indexOf("Netscape") != -1);
    var d = document;

    function ml(id)    {

        var el=d.getElementById?d.getElementById(id):d.all?d.all[id]:d.layers[id];
        if(d.layers){el.style=el;}
        el.sP=function(x,y){
            this.style.left=x + 'px';this.style.top=y + 'px';
        };
        el.x = (document.body.clientWidth/2) - 100;
        if (verticalpos=="fromtop")
            el.y = startY;
        else{
            el.y = window.innerHeight ? pageYOffset + window.innerHeight : ietruebody().scrollTop + ietruebody().clientHeight;
            el.y -= startY;
        }
        return el;
    }

    window.stayTopLeft=function() {
        if (verticalpos=="fromtop"){
            var pY = window.innerHeight ? pageYOffset : ietruebody().scrollTop;
            ftlObj.y += (pY + startY - ftlObj.y)/8;
            }
            else {
            var pY = window.innerHeight ? pageYOffset + window.innerHeight : ietruebody().scrollTop + ietruebody().clientHeight;
            ftlObj.y += (pY - startY - ftlObj.y)/8;
            }
            ftlObj.sP(ftlObj.x, ftlObj.y);
setTimeout("stayTopLeft()", 10);
    }
    ftlObj = ml("divAlwaysCenter");
    stayTopLeft();
}