function visibile(idel, widthimg){


  if (document.all){
  document.all[idel].style.pixelLeft = (document.body.clientWidth / 2) - widthimg;
  document.all[idel].style.visibility = "visible"; 
  }
  else
  {
    if (document.layers){
	bx = (window.innerWidth / 2) - widthimg;
    document.idel.left = bx;
    }
    else
    {
	  if(document.getElementById) {
	  document.getElementById(idel).style.left = (window.innerWidth / 2) - widthimg;
	  document.getElementById(idel).style.visibility = "visible";
      }
    }
  }

}

function cambiaimg(nimg, idel, nimg2, num, widthimg){
var par3;


  if (num != num2){
  /*
  document.getElementById("zimg").src = "libreria/" + nimg;
  document.getElementById("imglente").src = "img/vuoto.gif";
  document.getElementById("dlente").style.border = "1px";
 */
  par3 = "imglib.php?img=" + nimg;
  cc('zoom', par3);
  document.getElementById(idel).src = "imgprod/s" + nimg2;
    if (num2 > 0){
    document.getElementById('img' + num2).src = "libreria/s" + limg;
    }
  num2 = num;
  limg = nimg;
  }
  else
  {
  document.getElementById(idel).src = "libreria/s" + nimg;
  //document.getElementById("zimg").src = "imgprod/m" + nimg2;
  par3 = "imgprod.php?img=" + nimg2 + "&widthimg=" + widthimg;
  cc('zoom', par3);
  document.getElementById("imglente").src = "img/lente.jpg";
  document.getElementById("dlente").style.border = "1px solid red";
  num2 = -1;
  }
  
}

function cambiaimg2(nimg, idel, nimg2, num){
var par3;


  if (num != num2){
  /*
  document.getElementById("zimg").src = "libreria/" + nimg;
  document.getElementById("imglente").src = "img/vuoto.gif";
  document.getElementById("dlente").style.border = "1px";
 */
  par3 = "imglib.php?img=" + nimg;
  cc('zoom', par3);
  document.getElementById(idel).src = "imgprod/s" + nimg2;
    if (num2 > 0){
    document.getElementById('img' + num2).src = "libreria/s" + limg;
    }
  num2 = num;
  limg = nimg;
  }
  else
  {
  document.getElementById(idel).src = "libreria/s" + nimg;
  //document.getElementById("zimg").src = "imgprod/m" + nimg2;
  par3 = "imgprod2.php?img=" + nimg2;
  cc('zoom', par3);
  document.getElementById("imglente").src = "img/lente.jpg";
  document.getElementById("dlente").style.border = "1px solid red";
  num2 = -1;
  }
  
}


function novisibile(idel){
document.getElementById(idel).style.visibility = "hidden";
}