function popupvideo(url, paramId, ptitle, alttext, IdLang, videowidth, videoheight) {
var isIE = (navigator.appName == "Microsoft Internet Explorer");
var PreviewVideoWidth = (videowidth!="" ? videowidth*1 : DefaultPreviewVideoWidth*1);
var PreviewVideoHeight = (videoheight!="" ? videoheight*1 : DefaultPreviewVideoHeight*1);
var PreviewWindowWidth = PreviewVideoWidth*1+20;
var PreviewWindowHeight = PreviewVideoHeight*1+90;
var l = Math.floor((screen.width-PreviewWindowWidth)/2);
var t = Math.floor((screen.height-PreviewWindowHeight)/2);
//var MyTextField = document.getElementById (paramId);
//var tempURL = url + MyTextField.value;
//var didascalia = (alttext!="" ? alttext : MyTextField.value);
var tempURL = url;
var didascalia = alttext;
//alert (url);
if ((ptitle=='')) {wintitle = defaultwintitle;} else {wintitle = ptitle;}
if ((IdLang=='italian')) {TxtCloseWin = 'Chiudi finestra';TxtPrintWin = 'Stampa immagine';} else {TxtCloseWin = 'Close window';TxtPrintWin = 'Print image';}
w=open("",'image','width='+PreviewWindowWidth+',height='+PreviewWindowHeight+',toolbar=no,scrollbars=no,resizable=no,status=yes,location=no,menubar=no'+',left='+l+',top='+t);
w.document.writeln("");
w.document.writeln(" ");
w.document.writeln(" "+wintitle+"");
w.document.writeln(" ");
w.document.writeln("