window.onload=function(){
if(!document.getElementById || !document.getElementsByTagName) return;
attivaFade();       //effetto rollover sulle miniature
}
function attivaFade(){
var imgs=document.getElementById("fotografoColDx").getElementsByTagName("img");
for(var i=0;i<imgs.length;i++){
    imgs[i].onmouseover=function(){setOpacity(this,72)};
    imgs[i].onmouseout=function(){setOpacity(this,100)};
    }
}
function setOpacity(obj,opacity){
opacity=(opacity==100) ? 99.999 : opacity;
obj.style.filter = "alpha(opacity:"+opacity+")";  // IE/Win
obj.style.KHTMLOpacity = opacity/100; // Safari<1.2, Konqueror
obj.style.MozOpacity = opacity/100;   // Older Mozilla and Firefox
obj.style.opacity = opacity/100;      // Safari 1.2, newer Firefox and Mozilla, CSS3
}