// JavaScript Document
<!-- hide from none JavaScript Browsers
function aggiungibordo(immagine,colore){
if (document.all||document.getElementById){
immagine.style.borderColor=colore
}
}
// End Hiding -->

function getBrowserHeight()
{
   if (window.innerHeight)
   {
      return window.innerHeight;
   } else if (document.documentElement && document.documentElement.clientHeight != 0) {
      return document.documentElement.clientHeight;   
   } else if (document.body) {
      return document.body.clientHeight;
   }      
return 0;
}
function getScrollingPosition()
{

	var position = [0, 0];

   if (typeof window.pageYOffset != 'undefined')
   {

      position = [ window.pageXOffset, window.pageYOffset ];
   } else if (typeof document.documentElement.scrollTop != 'undefined' && document.documentElement.scrollTop > 0) {
      position = [ document.documentElement.scrollLeft, document.documentElement.scrollTop ];
   } else if (typeof document.body.scrollTop != 'undefined') {
      position = [ document.body.scrollLeft, document.body.scrollTop ];
   }

   return position;
}

function openLightBox(id){
    var larghezzaSchermo = 0;
	var el=document.getElementById(id);
	el.style.top="-1000px";
	el.style.left="-1000px";
	document.getElementById("blackBody").style.height=getBrowserHeight()+"px";
	document.getElementById("blackBody").style.display="block";
	el.style.display="block";
}


// POSIZIONA LAYER //
function posiziona(id_elemento, top, left) {
  var elemento = document.getElementById(id_elemento);
  if (elemento!=null){
  var is_explorer = (navigator.userAgent.indexOf("MSIE")>=0) ? true : false;
  var posLeft = (is_explorer) ? document.documentElement.scrollLeft : pageXOffset
  var posTop = (is_explorer) ? document.documentElement.scrollTop : pageYOffset

  left=parseInt((document.documentElement.clientWidth-document.getElementById(id_elemento).offsetWidth)/2);
  elemento.style.left = parseInt(posLeft) + left + "px";
  top=parseInt((document.documentElement.clientHeight-document.getElementById(id_elemento).offsetHeight)/2);
  elemento.style.top = parseInt(posTop) + top + "px";
//  elemento.style.top = posTop + top + "px";
 }
}

function aggiornaDim () {
	setInterval("document.getElementById('blackBody').style.height=getBrowserHeight()+'px';",100);
	setInterval("document.getElementById('blackBody').style.top=getScrollingPosition()[1]+'px';",100);
}

setInterval("posiziona('zoom',40,((document.documentElement.clientWidth-500)/2))",100);

function openImage(nomeimg){
	document.getElementById('imgzoom').src='loading.gif';
	document.getElementById('imgzoom').src=nomeimg;
	//document.getElementById('zoom').innerHTML='<img src="prenota-ora.gif" style="margin-top:5px;float:right;" />';
	openLightBox('zoom');
	document.getElementById("prenotapuls").style.display="block";
}