//
// ================================================ BrowserInfo ================
//
function BrowserInfo () {
	this.make = this.lookup(this.database) || "unknown";
	this.version = this.lookupver(navigator.userAgent)
		|| this.lookupver(navigator.appVersion)
		|| "unknown";
	this.os = this.lookup(this.dataOS) || "unknown";
}
// ----------------------------------------------- BrowserInfo ---------- lookup

BrowserInfo.prototype.lookup = 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;
		}
	return false;
}

// ----------------------------------------------- BrowserInfo ------- lookupver

BrowserInfo.prototype.lookupver = function(dataString) {	
	var index = dataString.indexOf(this.versionSearchString);
	if (index == -1) return false;
	return parseFloat(dataString.substring(index+this.versionSearchString.length+1));
}
// ----------------------------------------------- BrowserInfo -------- database

BrowserInfo.prototype.database = 	
	[
		{
			string: navigator.userAgent,
			subString: "Chrome",
			identity: "Chrome"
		},
		{ 	string: navigator.userAgent,
			subString: "OmniWeb",
			versionSearch: "OmniWeb/",
			identity: "OmniWeb"
		},
		{
			string: navigator.vendor,
			subString: "Apple",
			identity: "Safari",
			versionSearch: "Version"
		},
		{
			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"
		}
	];
// ----------------------------------------------- BrowserInfo ---------- dataOS

BrowserInfo.prototype.dataOS =	
	[
		{
			string: navigator.platform,
			subString: "Win",
			identity: "Windows"
		},
		{
			string: navigator.platform,
			subString: "Mac",
			identity: "Mac"
		},
		{
			   string: navigator.userAgent,
			   subString: "iPhone",
			   identity: "iPhone/iPod"
	    },
		{
			string: navigator.platform,
			subString: "Linux",
			identity: "Linux"
		}
	];