/*funzione di tracking*/
function WkpTracker(e)
{
	if(wkpDebug==true)
	{
		alert('nessun evento, la chiamata è arrivata dal caricamento della pagina');
	}

	//TRACKING VISITA PAGINA
	parametri = 'azione=trackvisita&track_page_enabled=' + wkpTrackPage + '&sito=' + wkpSito + '&catalogo=' + wkpCatalogo + 
				'&prodotto=' + wkpProdotto + '&percorso_thumb=' + wkpAddrThumb + '&thumb=' + wkpThumb + '&browser=' + wkpBrowser + '&version=' + wkpVersion + '&os=' + wkpOS + '&random=' + Date();

	if(wkpDebug==true)
	{
		alert('Procedo al salvataggio a db...');
	}
	var sent = false;

	//se il tracker si trova nello stesso server dello script effettuo la chiamata via ajax
	if (wkpServer.substring(0, 4) != 'http')
	{
		var xmlhttp = false;
		try { xmlhttp = new ActiveXObject("Msxml2.XMLHTTP"); }
		catch (e)
		{
			try { xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");	}
			catch (oc) { xmlhttp = null; }
		}
		if (!xmlhttp && typeof XMLHttpRequest != undefined) xmlhttp = new XMLHttpRequest();
		if (xmlhttp)
		{
			if (wkpDebug == true)
			{
				xmlhttp.onreadystatechange = function()
				{
					if (xmlhttp.readyState == 4)
					{
						if (xmlhttp.status == 200)
						{
							alert('Tracking effettuato in ' + wkpServer + ' con i seguenti parametri: ' + 'azione=trackvisita&track_page_enabled=' + wkpTrackPage + '&sito=' + wkpSito + '&catalogo=' + wkpCatalogo + 
				'&prodotto=' + wkpProdotto + '&percorso_thumb=' + wkpAddrThumb + '&thumb=' + wkpThumb + '&browser=' + wkpBrowser + '&version=' + wkpVersion + '&os=' + wkpOS + '&random=' + Date() + '\n\nServer answer: ' + xmlhttp.responseText);
						}
						else if (xmlhttp.status == 404)
						{
							alert('tracker.php non trovato in: ' + (wkpServer != '' ? wkpServer : '/tracker.php') + ' per favore impostare il parametro wkpServer');
						}
						else
						{
							alert('tracker.php ha risposto con lo status code ' + xmlhttp.status + ' ed il seguente errore: ' + xmlhttp.responseText);
						}
					}
				}
			}
			xmlhttp.open('GET', wkpServer + '?' + parametri, true);
			xmlhttp.setRequestHeader('Connection', 'close');
			xmlhttp.send(null);
			sent = true;
		}
	}
	//altrimenti procedo creando un immagine nascosta che funge da chiamata server
	if (sent == false)
	{
		if (wkpDebug == true)
		{
			alert('Tracking effettuato in ' + wkpServer + ' con i seguenti parametri: '+ parametri + 'Browser = ' + wkpBrowser + '\nVersion = ' + wkpVersion + '\nSistema Operativo = ' + wkpOS + 'Sito = ' + wkpSito + 'Pagina = ' + wkpPagina + 'Richiesta server:' + '<iframe src="' + wkpServer + '?' + parametri + '" width="400" height="30"></iframe>');
		}

		var wkpVisitaImg = new Image();
		wkpVisitaImg.src = wkpServer + '?' + parametri;
	}

	return true;
}

/*parametri per tracking*/
var wkpUtente = '';
var wkpPagina = '';
var wkpSito = '';
var wkpCatalogo = '';
var wkpAddrThumb = '';
var wkpThumb = '';
var wkpTrackPage = '';
var wkpLayout = '';
var wkpWCont;
var wkpHCont;
var wkpLayout = '';
var wkpLink	 = '';
var wkpServer = '';
var wkpBrowser = '';
var wkpVersion = '';
var wkpOS = '';
var wkpTempoClick = 0;
var wkpDebug = false;
var wkpClickDebug=false;


/*funzione di inizializzazione*/
function initWkpTracker()
{
	if(wkpDebug==true)
	{
		alert("initWkpTracker");
	}
	if ((wkpPagina == '' && wkpProdotto =='') || wkpServer == '')
	{
		if(wkpDebug==true)
		{
			alert('Parametri non definiti: definire Pagina ('+wkpPagina+') e Server ('+wkpServer+') nell\'inclusione dello script');
		}
		return false;
	}

	/*se il dominio è uguale al dominio in cui risiede lo script, effettuo una chiamata utilizzando ajax*/
	domain = window.location.href.match(/http:\/\/[^/]+\//);
	if (domain != null && wkpServer.substring(0, domain[0].length) == domain[0])
	{
		wkpServer = wkpServer.substring(domain[0].length - 1, wkpServer.length)
	}


	/** Add onmousedown event */
	if (typeof document.onload == 'function')
	{
		currentFunc = document.onload;
		document.onload = function(e) { WkpTracker(e); return currentFunc(e); }
	}
	else
	{
		document.onload = WkpTracker;
	}


	BrowserDetect.init();
	wkpBrowser=BrowserDetect.browser;
	wkpVersion=BrowserDetect.version;
	wkpOS=BrowserDetect.OS;

	/** Preparing main variables */
	infoBody = document.documentElement != undefined && document.documentElement.clientHeight != 0 ? document.documentElement : document.body;

	/*richiamo la funzione*/
	WkpTracker();
}

var BrowserDetect = {
	init: function () {
		this.browser = this.searchString(this.dataBrowser) || "An unknown browser";
		this.version = this.searchVersion(navigator.userAgent)
			|| this.searchVersion(navigator.appVersion)
			|| "an unknown version";
		this.OS = this.searchString(this.dataOS) || "an unknown OS";
	},
	searchString: function (data) {
		for (var i=0;i<data.length;i++)	{
			var dataString = data[i].string;
			var dataProp = data[i].prop;
			this.versionSearchString = data[i].versionSearch || data[i].identity;
			if (dataString) {
				if (dataString.indexOf(data[i].subString) != -1)
					return data[i].identity;
			}
			else if (dataProp)
				return data[i].identity;
		}
	},
	searchVersion: function (dataString) {
		var index = dataString.indexOf(this.versionSearchString);
		if (index == -1) return;
		return parseFloat(dataString.substring(index+this.versionSearchString.length+1));
	},
	dataBrowser: [
		{ 	string: navigator.userAgent,
			subString: "OmniWeb",
			versionSearch: "OmniWeb/",
			identity: "OmniWeb"
		},
		{
			string: navigator.vendor,
			subString: "Apple",
			identity: "Safari"
		},
		{
			prop: window.opera,
			identity: "Opera"
		},
		{
			string: navigator.vendor,
			subString: "iCab",
			identity: "iCab"
		},
		{
			string: navigator.vendor,
			subString: "KDE",
			identity: "Konqueror"
		},
		{
			string: navigator.userAgent,
			subString: "Firefox",
			identity: "Firefox"
		},
		{
			string: navigator.vendor,
			subString: "Camino",
			identity: "Camino"
		},
		{		// for newer Netscapes (6+)
			string: navigator.userAgent,
			subString: "Netscape",
			identity: "Netscape"
		},
		{
			string: navigator.userAgent,
			subString: "MSIE",
			identity: "Explorer",
			versionSearch: "MSIE"
		},
		{
			string: navigator.userAgent,
			subString: "Gecko",
			identity: "Mozilla",
			versionSearch: "rv"
		},
		{ 		// for older Netscapes (4-)
			string: navigator.userAgent,
			subString: "Mozilla",
			identity: "Netscape",
			versionSearch: "Mozilla"
		}
	],
	dataOS : [
		{
			string: navigator.platform,
			subString: "Win",
			identity: "Windows"
		},
		{
			string: navigator.platform,
			subString: "Mac",
			identity: "Mac"
		},
		{
			string: navigator.platform,
			subString: "Linux",
			identity: "Linux"
		}
	]

};