function Esegui(Comando, Id) {
	if(Comando!=''){document.FrmMain.Azione.value=Comando;}
	if(Id!=''){document.FrmMain.Id.value=Id;}
	document.FrmMain.submit();
}

function setLang(Lingua) {
	document.FrmMain.LangChooser.value="setLang";
	document.FrmMain.Lang.value=Lingua;
	if (document.FrmMain.Azione.value=="ScriviDb") {
		document.FrmMain.Azione.value="";
	}
	document.FrmMain.submit();
}

function keyListener(e) {
	if(!e) e=window.event;
	if(e.keyCode==13) Invia();
}

function CambiaPagina(i) {
	document.FrmMain.NPag.value=i;
	//document.FrmMain.Azione.value="";
	document.FrmMain.submit();
}

function IsDate(txtDate) {
    try {
        if (txtDate.length != 10)
        {
            return false;
        }
        else if
             (
                 isNaN(txtDate.substring(0, 2))       ||
                       txtDate.substring(2, 3) != "/" ||
                 isNaN(txtDate.substring(3, 5))       ||
                       txtDate.substring(5, 6) != "/" ||
                 isNaN(txtDate.substring(6, 10))
             )
        {
            return false;
        }
        else
        {
            return true;
        }
    }
    catch (e) {
        return false;
    }
}

function isNumeric(sText, ValidChars) {
   var IsNumber=true;
   var Char;
   for (CharPos = 0; CharPos < sText.length && IsNumber == true; CharPos++) { 
      Char = sText.charAt(CharPos); 
      if (ValidChars.indexOf(Char) == -1) {
         IsNumber = false;
      }
   }
   return IsNumber;
}

function isEmail(str) {
	var re =  /^([a-zA-Z0-9_\.\-\+])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/
	if (!re.test(str)) return false;
	return (true);
}

function toggle(obj) {
	a=document.getElementById(obj);
	if (a.style.display=="block") { chiudi(obj); }
	else { apri(obj); }
}

function apri(obj) {
	a=document.getElementById(obj);
	a.style.display="block";
	if ((document.getElementById(lastopen))&&(obj!=lastopen)) {
		chiudi(lastopen);
	}
	lastopen=obj;
}

function chiudi(obj) {
	a=document.getElementById(obj);
	a.style.display="none";
}

function PassaAPunto(Valore) {
	Valore = String(Valore).replace(',', '.');
	return Number(Valore);
}

function sqlDate(Data) {
	var Giorno = Data.substring(0, 2);
	var Mese = Data.substring(3, 5);
	var Anno = Data.substring(6, 10);
	return(Anno + "-" + Mese + "-" + Giorno);
}

function getCheckedValue(radioObj) {
	if(!radioObj)
		return "";
	var radioLength = radioObj.length;
	if(radioLength == undefined)
		if(radioObj.checked)
			return radioObj.value;
		else
			return "";
	for(var i = 0; i < radioLength; i++) {
		if(radioObj[i].checked) {
			return radioObj[i].value;
		}
	}
	return "";
}

function PopUpWindow(url,XSize,YSize){
	w=XSize;h=YSize;
	LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
	TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
	settings = 'height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',resizable=0,status=yes,scrollbars=yes,toolbar=0,location=0,directories=0,status=0,menubar=0'
	win = window.open(url, "window", settings);
	win.focus();
}

function Banner(url, description, image) {
	this.url = url;
	this.description = description;
	this.image = image;
	return this;
}

function show_calendar(str_target, str_datetime) {
	var arr_months = ["Gennaio", "Febbraio", "Marzo", "Aprile", "Maggio", "Giugno",
		"Luglio", "Agosto", "Settembre", "Ottobre", "Novembre", "Dicembre"];
	var week_days = ["Do", "Lu", "Ma", "Me", "Gi", "Ve", "Sa"];
	var n_weekstart = 1; // day week starts from (normally 0 or 1)

	var dt_datetime = (str_datetime == null || str_datetime =="" ?  new Date() : str2dt(str_datetime));
	var dt_prev_month = new Date(dt_datetime);
	dt_prev_month.setMonth(dt_datetime.getMonth()-1);
	var dt_next_month = new Date(dt_datetime);
	dt_next_month.setMonth(dt_datetime.getMonth()+1);
	var dt_firstday = new Date(dt_datetime);
	dt_firstday.setDate(1);
	dt_firstday.setDate(1-(7+dt_firstday.getDay()-n_weekstart)%7);
	var dt_lastday = new Date(dt_next_month);
	dt_lastday.setDate(0);
	
	// html generation (feel free to tune it for your particular application)
	// print calendar header
	var str_buffer = new String (
		"<html>\n"+
		"<head>\n"+
		"	<title>Calendar</title>\n"+
		"</head>\n"+
		"<body bgcolor=\"White\">\n"+
		"<table class=\"clsOTable\" cellspacing=\"0\" border=\"0\" width=\"100%\">\n"+
		"<tr><td bgcolor=\"#4682B4\">\n"+
		"<table cellspacing=\"1\" cellpadding=\"3\" border=\"0\" width=\"100%\">\n"+
		"<tr>\n	<td bgcolor=\"#4682B4\"><a href=\"javascript:window.opener.show_calendar('"+
		str_target+"', '"+ dt2dtstr(dt_prev_month)+"');\">"+
		"<img src=\"img/prev.gif\" width=\"16\" height=\"16\" border=\"0\""+
		" alt=\"Mese precedente\"></a></td>\n"+
		"	<td bgcolor=\"#4682B4\" colspan=\"5\">"+
		"<font color=\"white\" face=\"tahoma, verdana\" size=\"2\">"
		+arr_months[dt_datetime.getMonth()]+" "+dt_datetime.getFullYear()+"</font></td>\n"+
		"	<td bgcolor=\"#4682B4\" align=\"right\"><a href=\"javascript:window.opener.show_calendar('"
		+str_target+"', '"+dt2dtstr(dt_next_month)+"');\">"+
		"<img src=\"img/next.gif\" width=\"16\" height=\"16\" border=\"0\""+
		" alt=\"Mese successivo\"></a></td>\n</tr>\n"
	);

	var dt_current_day = new Date(dt_firstday);
	// print weekdays titles
	str_buffer += "<tr>\n";
	for (var n=0; n<7; n++)
		str_buffer += "	<td bgcolor=\"#87CEFA\">"+
		"<font color=\"white\" face=\"tahoma, verdana\" size=\"2\">"+
		week_days[(n_weekstart+n)%7]+"</font></td>\n";
	// print calendar table
	str_buffer += "</tr>\n";
	while (dt_current_day.getMonth() == dt_datetime.getMonth() ||
		dt_current_day.getMonth() == dt_firstday.getMonth()) {
		// print row heder
		str_buffer += "<tr>\n";
		for (var n_current_wday=0; n_current_wday<7; n_current_wday++) {
				if (dt_current_day.getDate() == dt_datetime.getDate() &&
					dt_current_day.getMonth() == dt_datetime.getMonth())
					// print current date
					str_buffer += "	<td bgcolor=\"#FFB6C1\" align=\"right\">";
				else if (dt_current_day.getDay() == 0 || dt_current_day.getDay() == 6)
					// weekend days
					str_buffer += "	<td bgcolor=\"#DBEAF5\" align=\"right\">";
				else
					// print working days of current month
					str_buffer += "	<td bgcolor=\"white\" align=\"right\">";

				if (dt_current_day.getMonth() == dt_datetime.getMonth())
					// print days of current month
					str_buffer += "<a href=\"javascript:window.opener."+str_target+
					".value='"+dt2dtstr(dt_current_day)+"'; window.close();\">"+
					"<font color=\"black\" face=\"tahoma, verdana\" size=\"2\">";
				else 
					// print days of other months
					str_buffer += "<a href=\"javascript:window.opener."+str_target+
					".value='"+dt2dtstr(dt_current_day)+"'; window.close();\">"+
					"<font color=\"gray\" face=\"tahoma, verdana\" size=\"2\">";
				str_buffer += dt_current_day.getDate()+"</font></a></td>\n";
				dt_current_day.setDate(dt_current_day.getDate()+1);
		}
		// print row footer
		str_buffer += "</tr>\n";
	}
	// print calendar footer
	str_buffer +=
		"</table>\n" +
		"</tr>\n</td>\n</table>\n" +
		"</body>\n" +
		"</html>\n";

	var vWinCal = window.open("", "Calendar", 
		"width=200,height=220,status=no,resizable=yes,top=300,left=450");
	vWinCal.opener = self;
	var calc_doc = vWinCal.document;
	calc_doc.write (str_buffer);
	calc_doc.close();
}
// datetime parsing and formatting routimes. modify them if you wish other datetime format
function str2dt (str_datetime) {
	var re_date = /^(\d+)\/(\d+)\/(\d+)(\s*)$/;
	//  Inizio:--> /^   Fine:--> $/   (\d+)\
	if (!re_date.exec(str_datetime))
		return alert("Formato data non valido: "+ "[" + str_datetime +"]");
	return (new Date (RegExp.$3, RegExp.$2-1, RegExp.$1, RegExp.$4, RegExp.$5, RegExp.$6));
}
function dt2dtstr (dt_datetime) {
	var Giorno = dt_datetime.getDate();
	var Mese = dt_datetime.getMonth()+1;
	var Anno = dt_datetime.getFullYear();
	if (Giorno<=9) {
		Giorno = '0' + Giorno;
	}
	if (Mese<=9) {
		Mese = '0' + Mese;
	}
	return (new String (Giorno + "/" + Mese + "/" + Anno));
}
function dt2tmstr (dt_datetime) {
	return (new String (
			dt_datetime.getHours()+":"+dt_datetime.getMinutes()+":"+dt_datetime.getSeconds()));
}

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}