function getDocHeight(doc) {
  var docHt = 0, sh, oh;
  if (doc.height) docHt = doc.height;
  else if (doc.body) {
    if (doc.body.scrollHeight) docHt = sh = doc.body.scrollHeight;
    if (doc.body.offsetHeight) docHt = oh = doc.body.offsetHeight;
    if (sh && oh) docHt = Math.max(sh, oh);
  }
  return docHt;
}
function setIframeHeight(iframeName, flg) {
 if (flg==null)  flg=true;
  var iframeWin = window.frames[iframeName];
  var iframeEl = document.getElementById? document.getElementById(iframeName): document.all? document.all[iframeName]: null;
var dim=100;
var extraH=0;
if (navigator.userAgent.indexOf("Firefox")>-1) extraH=100;
dim=eval(dim+"+"+extraH);
  if ( iframeEl && iframeWin ) {
   if (flg)  iframeEl.style.height = "auto"; // helps resize (for some) if new doc shorter than previous  
    var docHt = getDocHeight(iframeWin.document);
    if (docHt) iframeEl.style.height = docHt + dim+ "px";    // need to add to height to be sure it will all show
    iframeWin.document.body.style.width="98%" // per evitare l'horizontal scroll bar in firefox
  }
}
function setIframeHeightDim(iframeName, flg,dim) {
 if (flg==null)  flg=true;
  var iframeWin = window.frames[iframeName];
//alert (iframeName+"-"+document.getElementById(iframeName))
  var iframeEl = document.getElementById? document.getElementById(iframeName): document.all? document.all[iframeName]: null;
var extraH=0;
if (navigator.userAgent.indexOf("Firefox")>-1) extraH=100;
dim=eval(dim+"+"+extraH);
//alert(iframeWin+"-"+iframeEl+"-"+getDocHeight(iframeWin.document))
  if ( iframeEl && iframeWin ) {
   if (flg)  iframeEl.style.height = "auto"; // helps resize (for some) if new doc shorter than previous  
    var docHt = getDocHeight(iframeWin.document);
    if (docHt) iframeEl.style.height = docHt + dim+ "px";    // need to add to height to be sure it will all show
    iframeWin.document.body.style.width="98%" // per evitare l'horizontal scroll bar in firefox
  }
}