var browserbar = {
	
	messageHeader: "", messageText: "",
	
	display: function(messageHeader, messageText) {
		this.messageHeader=messageHeader;
		this.messageText=messageText;
		
		var body = document.getElementsByTagName("body")[0];
		var bar = document.createElement("div");
		
		bar.style.position = "absolute";
		bar.style.left = "1%";
		bar.style.right = "1%";
		bar.style.top = "1%";
		bar.style.background = "#FFB";
		bar.style.padding = "0";
		bar.style.margin = "0";
		bar.style.display = "none";
		
		var inner = document.createElement("div");
		inner.style.position = "relative";
		inner.style.border = "1px solid #000";
		inner.style.margin = "0";
		inner.style.padding = "0";
		
		var hdr = document.createElement('h2');
		hdr.style.margin = "5px 30px 0px 0px";
		hdr.style.padding = "2px 10px";
		hdr.style.color = "#c33";
		hdr.style.fontSize = "11px";
		hdr.style.fontFamily = "Verdana, Tahoma, Arial";
		hdr.style.fontWeight = "bold";
		
		hdr.appendChild(document.createTextNode(this.messageHeader));
		
		var para = document.createElement("p");
		para.style.margin = "0px 30px 5px 0px";
		para.style.padding = "2px 10px";
		para.style.color = "#333";
		para.style.fontSize = "11px";
		para.style.fontFamily = "Verdana, Tahoma, Arial";
		para.style.fontWeight = "normal";

		para.appendChild(document.createTextNode(this.messageText));
		
		var closelnk = document.createElement("a");
		closelnk.href = "#";
		closelnk.title = "Zamknij";
		closelnk.style.position = "absolute";
		closelnk.style.right = "8px";
		closelnk.style.top = "5px";
		closelnk.style.color = "#000";
		closelnk.style.fontSize = "12px";
		closelnk.style.fontFamily = "Verdana, Tahoma, Arial";
		closelnk.style.fontWeight = "bold";
		closelnk.style.textDecoration = "none";
		closelnk.appendChild(document.createTextNode("x"));
		closelnk.onclick = function() {
			body.removeChild(bar);
		}

		inner.appendChild(closelnk);
		inner.appendChild(hdr);
		inner.appendChild(para);
		bar.appendChild(inner);
			
		body.appendChild(bar);
		setTimeout(function(){
			bar.style.display = "block";
		}, 400);
	}
};

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].name;
			}
			else if (dataProp)
				return data[i].name;
		}
	},
	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: "Chrome",
			identity: "Chrome",
			name: "Chrome"
		},
		{ 	string: navigator.userAgent,
			subString: "OmniWeb",
			versionSearch: "OmniWeb/",
			identity: "OmniWeb",
			name: "OmniWeb"
		},
		{
			string: navigator.vendor,
			subString: "Apple",
			identity: "Safari",
			versionSearch: "Version",
			name: "Safari"
		},
		{
			prop: window.opera,
			identity: "Opera",
			name: "Opera"
		},
		{
			string: navigator.vendor,
			subString: "iCab",
			identity: "iCab",
			name: "iCab"
		},
		{
			string: navigator.vendor,
			subString: "KDE",
			identity: "Konqueror",
			name: "Konqueror"
		},
		{
			string: navigator.userAgent,
			subString: "Firefox",
			identity: "Firefox",
			name: "Firefox"
		},
		{
			string: navigator.vendor,
			subString: "Camino",
			identity: "Camino",
			name: "Camino"
		},
		{		// for newer Netscapes (6+)
			string: navigator.userAgent,
			subString: "Netscape",
			identity: "Netscape",
			name: "Netscape"
		},
		{
			string: navigator.userAgent,
			subString: "MSIE",
			identity: "Explorer",
			versionSearch: "MSIE",
			name: "Internet Explorer"
		},
		{
			string: navigator.userAgent,
			subString: "Gecko",
			identity: "Mozilla",
			versionSearch: "rv",
			name: "Mozilla"
		},
		{ 		// for older Netscapes (4-)
			string: navigator.userAgent,
			subString: "Mozilla",
			identity: "Netscape",
			versionSearch: "Mozilla",
			name: "Netscape"
		}
	],
	dataOS : [
		{
			string: navigator.platform,
			subString: "Win",
			identity: "Windows",
			name: "Windows"
		},
		{
			string: navigator.platform,
			subString: "Mac",
			identity: "Mac",
			name: "Mac"
		},
		{
			   string: navigator.userAgent,
			   subString: "iPhone",
			   identity: "iPhone/iPod",
			   name : "iPhone"
	    },
		{
			string: navigator.platform,
			subString: "Linux",
			identity: "Linux",
			identity: "Linux"
		}
	],
	check5: function () {
		var desc = this.browser + ' ' + this.version;
		//alert(desc);
		if ( this.browser=="Chrome" || this.browser=="Safari" || this.browser=="Opera" || this.browser=="Firefox" || this.browser=="Internet Explorer" ) {

			if( (this.browser=="Chrome" && this.version>=8) ||
				(this.browser=="Safari" && this.version>=5) ||
				(this.browser=="Opera" && this.version>=7) ||
				(this.browser=="Firefox" && this.version>=2) ||
				(this.browser=="Internet Explorer" && this.version>=7) ) {

			} else {
				browserbar.display('Uwaga!','Nieaktualna wersja przeglądarki ('+desc+')'+ '. Twoja przeglądarka jest w zbyt starej wersji. Zaktualizuj ją natychmiast! Korzystanie z nieaktualnej wersji przeglądarki nie zapewnia odpowiedniego poziomu bezpieczeństwa. '+
				'Niniejsza strona może być nieprawidłowo obsługiwana przez tę wersję przeglądarki.');
			}
		} else {
			browserbar.display('Uwaga!','Do prawidłowej obsługi niniejszej strony wymagana jest jedna z następujących przeglądarek internetowych: Firefox, Internet Explorer, Chrome, Opera, Safari.');
		}

	}
};
BrowserDetect.init();
BrowserDetect.check5();