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"
		}
	]

};
BrowserDetect.init();

function browserNaam(){
	var userAgent = navigator.userAgent.toLowerCase();
	var browser;

	if (checkBrowser('konqueror'))
	{
	browser = "Konqueror";
	}
	else if (checkBrowser('safari')) browser = "Safari"
	else if (checkBrowser('omniweb')) browser = "OmniWeb"
	else if (checkBrowser('opera')) browser = "Opera"
	else if (checkBrowser('webtv')) browser = "WebTV"
	else if (checkBrowser('icab')) browser = "iCab"
	else if (checkBrowser('msie')) browser = "Internet Explorer"
	else if (!checkBrowser('compatible'))
	{
	browser = "Netscape Navigator"
	
	}
	else browser = "An unknown browser";

	return browser;

}


function browserVersie(){
	var userAgent = navigator.userAgent.toLowerCase();
	var OS,browser,version,total,thestring;

	if (checkBrowser('konqueror'))
	{
	browser = "Konqueror";
	OS = "Linux";
	}
	else if (checkBrowser('safari')) browser = "Safari"
	else if (checkBrowser('omniweb')) browser = "OmniWeb"
	else if (checkBrowser('opera')) browser = "Opera"
	else if (checkBrowser('webtv')) browser = "WebTV"
	else if (checkBrowser('icab')) browser = "iCab"
	else if (checkBrowser('msie')) browser = "Internet Explorer"
	else if (!checkBrowser('compatible'))
	{
	browser = "Netscape Navigator"
	version = userAgent.charAt(8);
	}
	else browser = "An unknown browser";
	
	if (!version) version = userAgent.charAt(place + thestring.length);
	
	if (!OS)
	{
	if (checkBrowser('linux')) OS = "Linux";
	else if (checkBrowser('x11')) OS = "Unix";
	else if (checkBrowser('mac')) OS = "Mac"
	else if (checkBrowser('win')) OS = "Windows"
	else OS = "an unknown operating system";
	}
	
	function checkBrowser(string){
	
		place = userAgent.indexOf(string) + 1;
		thestring = string;
		return place;
	}
	
	return version;
}

function checkBrowser(string){

	var userAgent = navigator.userAgent.toLowerCase();
	place = userAgent.indexOf(string) + 1;
	thestring = string;
	return place;
}

function schermResolutie() {
	//document.getElementById('res').value = browserNaam() + " " + browserVersie() + " in resolutie " + screen.width + " bij " + screen.height;
	document.getElementById('res').value = BrowserDetect.browser + " " + BrowserDetect.version + " op " + BrowserDetect.OS + " in resolutie " + screen.width + " bij " + screen.height;
}