//Highlight image script- By Dynamic Drive
//For full source code and more DHTML scripts, visit http://www.dynamicdrive.com
//This credit MUST stay intact for use

function makevisible(cur,which){
strength=(which==0)? 1 : 0.2

if (cur.style.MozOpacity)
cur.style.MozOpacity=strength
else if (cur.filters)
cur.filters.alpha.opacity=strength*100
}
<!-- Begin
function CaricaFoto(img){
  foto1= new Image();
  foto1.src=(img);
  Controlla(img);
}
function Controlla(img){
  if((foto1.width!=0)&&(foto1.height!=0)){
    viewFoto(img);
  }
  else{
    funzione="Controlla('"+img+"')";
    intervallo=setTimeout(funzione,20);
  }
}
function viewFoto(img){
  largh=foto1.width+20;
  altez=foto1.height+20;
  stringa="width="+largh+",height="+altez;
  finestra=window.open(img,"",stringa);
}
//  End -->

var aySound = new Array();
// Below: source for sound files to be preloaded
aySound[0] = "drill_2.wav";
aySound[1] = "LW.wav";

// DO NOT edit below this line
document.write('<BGSOUND ID="auIEContainer">')
IE = (navigator.appVersion.indexOf("MSIE")!=-1 && document.all)? 1:0;
NS = (navigator.appName=="Netscape" && navigator.plugins["LiveAudio"])? 1:0;
ver4 = IE||NS? 1:0;
onload=auPreload;

function auPreload() {
if (!ver4) return;
if (NS) auEmb = new Layer(0,window);
else {
Str = "<DIV ID='auEmb' STYLE='position:absolute;'></DIV>";
document.body.insertAdjacentHTML("BeforeEnd",Str);
}
var Str = '';
for (i=0;i<aySound.length;i++)
Str += "<EMBED SRC='"+aySound[i]+"' AUTOSTART='FALSE' HIDDEN='TRUE'>"
if (IE) auEmb.innerHTML = Str;
else {
auEmb.document.open();
auEmb.document.write(Str);
auEmb.document.close();
}
auCon = IE? document.all.auIEContainer:auEmb;
auCon.control = auCtrl;
}
function auCtrl(whSound,play) {
if (IE) this.src = play? aySound[whSound]:'';
else eval("this.document.embeds[whSound]." + (play? "play()":"stop()"))
}
function playSound(whSound) { if (window.auCon) auCon.control(whSound,true); }
function stopSound(whSound) { if (window.auCon) auCon.control(whSound,false); }
//-->

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function popUp(URL) {
day = new Date();
id = day.getTime();
eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=670,height=420,left = 45,top = 0');");
}