var xT='';
	var yT='TERRECOTTE';
	var wT='';
	var zT='';
	
	var xR='';
	var yR='REFRATTARI';
	var wR='';
	var zR='';
	
	var xC='';
	var yC='CAMINETTI';
	var wC='';
	var zC='';
	
	var h;
	var j;
	
	function calcolaLink(x,y,w,z){
	if(y=="TERRECOTTE"){
	yT=y;
	if(w!=''){
	wT=w;
	wR='';
	wC='';
	j=x;
	}
	if(z!=''){
	h=wT;
	zT=z;
	xT=x;
	}
	}
	if(y=="REFRATTARI"){
	yR=y;
	if(w!=''){
	wR=w;
	wT='';
	wC='';
	j=x;
	}
	if(z!=''){
	h=wR;
	zR=z;
	xR=x;
	}
	}
	if(y=="CAMINETTI"){
	yC=y;
	if(w!=''){
	wC=w;
	wT='';
	wR='';
	j=x;
	}
	if(z!=''){
	h=wC;
	zC=z;
	xC=x;
	}
	}
	mostraLink(x,y,w,z);

	}
	
	
	function mostraLink(x,y,w,z){


	var b=document.getElementById("txtHTML");
	var c=document.getElementById("nav");
	var angDx=document.getElementById("tabColSx1");
	
	if(y=="TERRECOTTE"){
	angDx.style.background = "url(img_shared/angSxTerrecotte.jpg)";
	if(zT && wT==h){
	p="<b>" + yT + "<\/b>" + "&nbsp;::&nbsp;" + wT + "&nbsp;::&nbsp;<i>" + zT +"<\/i>";
	b.src = "preloadFrame.php?f=" + xT;
	} 
	else if(wT && yT){
	p="<b>" + yT + "<\/b>" + "&nbsp;::&nbsp;" + wT;
	if(!z){
	b.src = "preloadFrame.php?f=" + j;
	}
	else{
	b.src = "preloadFrame.php?f=" + xT;

	}
	}
	else {
	p="<b>" + yT + "<\/b>";
	if(!wT || !zT){
	b.src = "preloadFrame.php?f=" + x;
	}
	else {
	b.src = "preloadFrame.php?f=" + xT;
	}
	}
	}
	
	if(y=="REFRATTARI"){
	angDx.style.background = "url(img_shared/angSxRefrattari.jpg)";
	if(zR && wR==h){
	p="<b>" + yR + "<\/b>" + "&nbsp;::&nbsp;" + wR + "&nbsp;::&nbsp;<i>" + zR +"<\/i>";
	b.src = "preloadFrame.php?f=" + xR;
	} 
	else if(wR && yR){
	p="<b>" + yR + "<\/b>" + "&nbsp;::&nbsp;" + wR;
	if(!z){
	b.src = "preloadFrame.php?f=" + j;
	}
	else{
	b.src = "preloadFrame.php?f=" + xR;

	}
	}
	else {
	p="<b>" + yR + "<\/b>";
	if(!wR || !zR){
	b.src = "preloadFrame.php?f=" + x;
	}
	else {
	b.src = "preloadFrame.php?f=" + xR;
	}
	}
	}
	
	if(y=="CAMINETTI"){
	angDx.style.background = "url(img_shared/angSxCaminetti.jpg)";
	if(zC && wC==h){
	p="<b>" + yC + "<\/b>" + "&nbsp;::&nbsp;" + wC + "&nbsp;::&nbsp;<i>" + zC +"<\/i>";
	b.src = "preloadFrame.php?f=" + xC;
	} 
	else if(wC && yC){
	p="<b>" + yC + "<\/b>" + "&nbsp;::&nbsp;" + wC;
	if(!z){
	b.src = "preloadFrame.php?f=" + j;
	}
	else{
	b.src = "preloadFrame.php?f=" + xC;

	}
	}
	else {
	p="<b>" + yC + "<\/b>";
	if(!wC || !zC){
	b.src = "preloadFrame.php?f=" + x;
	}
	else {
	b.src = "preloadFrame.php?f=" + xC;
	}
	}
	}
	
	c.innerHTML=p;
	}
	
// 	function help(o){
// 	if(o==1){
// 	alert(xT + "\r" + yT + "\r" + wT + "\r" + zT);
// 	}
// 	else if(o==2){
// 	alert(xR + "\r" + yR + "\r" + wR + "\r" + zR);
// 	}
// 	else {
// 	alert(xC + "\r" + yC + "\r" + wC + "\r" + zC);
// 	}
// 	}