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

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

function riposiziona(arg, ww, hh){
var el=document.getElementById(arg);
//alert(el);
el.style.top=Math.round((rH() - hh)/2)+'px';
el.style.left=Math.round((rW() - ww)/2)+'px';
el.style.visibility='visible';

}

function centra(arg, ww){
	var el=document.getElementById(arg);
	el.style.left=Math.round((rW() - ww)/2)+'px';
	el.style.visibility='visible';
}

function checkForm(){
	if(document.getElementById('nome').value==""){
		alert("Inserire nome");
		return false;
	}
	if(document.getElementById('cognome').value==""){
		alert("Inserire cognome");
		return false;
	}
	if(document.getElementById('indirizzo').value==""){
		alert("Inserire indirizzo");
		return false;
	}
	if(document.getElementById('citta').value==""){
		alert("Inserire cittą");
		return false;
	}
	if(document.getElementById('cap').value==""){
		alert("Inserire CAP");
		return false;
	}
	if(document.getElementById('paese').value==""){
		alert("Inserire paese");
		return false;
	}
	if(document.getElementById('telefono').value==""){
		alert("Inserire telefono");
		return false;
	}
	if(document.getElementById('mail').value==""){
		alert("Inserire mail");
		return false;
	}
	else{
		var espressione = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-]{2,})+\.)+([a-zA-Z0-9]{2,})+$/;
		if (!espressione.test(document.getElementById('mail').value))
		{
			alert("La mail inserita non e' valida!");
			return false;
		}
	}
	if(document.getElementById('giorno').selectedIndex==0 || document.getElementById('mese').selectedIndex==0){
		alert("Segliere una data di inizio");
		return false;
	}
	if(document.getElementById('toG').selectedIndex==0 || document.getElementById('toM').selectedIndex==0){
		alert("Segliere una data");
		return false;
	}
	if(document.getElementById('num').value==""){
		alert("Inserire numero ospiti");
		return false;
	}
	/*document.formCt.action="";
	document.formCt.submit();*/
}

function resetForm(){
	document.getElementById('nome').value="";
	document.getElementById('cognome').value="";
	document.getElementById('indirizzo').value="";
	document.getElementById('citta').value="";
	document.getElementById('cap').value="";
	document.getElementById('paese').value="";
	document.getElementById('telefono').value="";
	document.getElementById('mail').value="";
	document.getElementById('giorno').selectedIndex=0;
	document.getElementById('mese').selectedIndex=0;
	document.getElementById('anno').selectedIndex=0;
	document.getElementById('toG').selectedIndex=0;
	document.getElementById('toM').selectedIndex=0;
	document.getElementById('toA').selectedIndex=0;
	document.getElementById('note').value="";
}
/**************************************/
function showRow(n, m){
	//alert(navigator.appName);
	var bro=navigator.appName;
	var ver=navigator.appVersion; 
	var stile="";
	if(bro=="Microsoft Internet Explorer") stile="block";
	else if(bro=="Netscape") stile="table-row";
	document.getElementById("riga"+n).style.display=stile;
	document.getElementById("rigaF"+n).style.display=stile;
	for(var i=0; i<m; i++){
		if(i!=n){
			document.getElementById("riga"+i).style.display="none";
			document.getElementById("rigaF"+i).style.display="none";
		}
	}
}

function showItems(n, m){
	var bro=navigator.appName;
	var ver=navigator.appVersion; 
	var stile, sr="";
	if(bro=="Microsoft Internet Explorer") {
		stile="block";
		sr="block";
	}
	else if(bro=="Netscape") {
		stile="table-row";
		sr="table";
	}
	document.getElementById("fotona").style.display="none";
	document.getElementById("flashTable").style.display=sr;
	document.getElementById("riga"+n).style.display=stile;
	document.getElementById("rigaF"+n).style.display=stile;
	for(var i=0; i<m; i++){
		if(i!=n){
			document.getElementById("riga"+i).style.display="none";
			document.getElementById("rigaF"+i).style.display="none";
		}
	}
}