function addLoadingBehaviour()
{ 
	var i;
	var va=document.getElementsByTagName("a");
 	
 	for(i=0;i<va.length;i++)
 	{
		va[i].addEventListener("click", showLoading, false);
 	} 
} 

function showLoading()
{
	var LoadingBox = document.getElementById("Loading");
	var lTop = f_scrollTop();
	alert(lTop);
	alert(LoadingBox.style.top);
	LoadingBox.style.top = LoadingBox.style.top + lTop;
	LoadingBox.style.display = 'inline';
	
}
	
function ShowSubmission(id)
{
	var Stringa = "http://www.alessandroguido.it/auerr/Articolo.asp?ID=" + id;
	window.open(Stringa, "", "status=0,toolbar=0,titlebar=0,menubar=0,resizable=1,scrollbars=1");
}
	
function ShowGuestbookForm(lArtworkID, lConversation)
{
	var m = document.getElementById("GuestbookForm");
	var lTop = f_scrollTop();
	m.style.top = m.style.top + lTop;
	m.style.display = 'inline';
	var cArtworkID = document.getElementById("ArtworkID");
	cArtworkID.value = lArtworkID;
	var cConversation = document.getElementById("Conversation");
	cConversation.value = lConversation;
  	
  	var objs=document.getElementsByTagName("object");
  	
  	if(objs[0])
  	{
		for (i=0;i<objs.length;i++)
		{
			objs[i].style.visibility = 'hidden';
		}   		
	}
  	
  	var fp=document.getElementById("flashPlayer");
  	if(fp)
  	{
  		fp.style.visibility= 'hidden';
  	}	
  	
  }

function HideGuestbookForm()
{
	var m = document.getElementById("GuestbookForm");
	m.style.top = 0;
	m.style.display = 'none';		

  	var objs=document.getElementsByTagName("object");
  	
  	if(objs[0])
  	{
		for (i=0;i<objs.length;i++)
		{
			objs[i].style.visibility = 'visible';
		}   		
	}
	
  	var fp=document.getElementById("flashPlayer");
  	if(fp)
  	{
  		fp.style.visibility = 'visible';
  	}	  	
}

function openForm(sFormId, lArtworkID, lConversation)
{
	var m = document.getElementById(sFormId);
	m.style.display = 'inline';
	alert(m);
	var cArtworkID = document.getElementById("ArtworkID");
	cArtworkID.value = lArtworkID;
	var cConversation = document.getElementById("Conversation");
	cConversation.value = lConversation;
}

function hideForm(sFormId)
{
	var m = document.getElementById(sFormId);
	m.style.display = 'none';		
}


function f_clientWidth() {
	return f_filterResults (
		window.innerWidth ? window.innerWidth : 0,
		document.documentElement ? document.documentElement.clientWidth : 0,
		document.body ? document.body.clientWidth : 0
	);
}

function f_clientHeight() {
	return f_filterResults (
		window.innerHeight ? window.innerHeight : 0,
		document.documentElement ? document.documentElement.clientHeight : 0,
		document.body ? document.body.clientHeight : 0
	);
}

function f_scrollLeft() {
	return f_filterResults (
		window.pageXOffset ? window.pageXOffset : 0,
		document.documentElement ? document.documentElement.scrollLeft : 0,
		document.body ? document.body.scrollLeft : 0
	);
}

function f_scrollTop() {
	return f_filterResults (
		window.pageYOffset ? window.pageYOffset : 0,
		document.documentElement ? document.documentElement.scrollTop : 0,
		document.body ? document.body.scrollTop : 0
	);
}

function f_filterResults(n_win, n_docel, n_body) {
	var n_result = n_win ? n_win : 0;
	if (n_docel && (!n_result || (n_result > n_docel)))
		n_result = n_docel;
	return n_body && (!n_result || (n_result > n_body)) ? n_body : n_result;
}

function goThere(e)
{
	var keynum;
	var keychar;
	var numcheck;
	
	if(window.event) // IE
	{
		keynum = e.keyCode;
	}
	else if(e.which) // Netscape/Firefox/Opera
	{
		keynum = e.which;
	}
	
	if(keynum == 37 || keynum == 100) // left arrow
	{
		var m = document.getElementById("Prec");
		if(null==m) m = document.getElementById("Ring");
		window.location.href = m;
	}
	else if(keynum == 39 || keynum == 102) // right arrow
	{
		var m = document.getElementById("Succ");
		if(null==m) m = document.getElementById("Ring");
		window.location.href = m;
 	}


}