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) {
		var i;
		for(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;
		}
		else {
			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'
		},
		{
			string:			navigator.userAgent,
			subString:		'Netscape',
			identity:		'Netscape'
		},
		{
			string:			navigator.userAgent,
			subString:		'MSIE',
			identity:		'Internet Explorer',
			versionSearch:	'MSIE'
		},
		{
			string:			navigator.userAgent,
			subString:		'Gecko',
			identity:		'Mozilla',
			versionSearch:	'rv'
		},
		{
			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();

var isIE = BrowserDetect.browser == 'Internet Explorer';
var isFF = BrowserDetect.browser == 'Firefox';