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: "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",
			versionSearch: "Version"
		},

		{
			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.userAgent,
			subString: "iPhone",
			identity: "iPhone/iPod"
		},

		{
			string: navigator.platform,
			subString: "Linux",
			identity: "Linux"
		}
	]
};

function displaySection(direction) {
	var frmContent = document.getElementById("container");
	var srcAbsolute = frmContent.src;
	var srcRelative = srcAbsolute.substring(srcAbsolute.lastIndexOf("/") + 1);

	if (direction == 0) {
		if (srcRelative == "android.xml") {
			frmContent.src = "ramblings.xml";
		} else if (srcRelative == "comedy.xml") {
			frmContent.src = "android.xml";
		} else if (srcRelative == "ramblings.xml") {
			frmContent.src = "comedy.xml";
		}
	} else {
		if (srcRelative == "android.xml") {
			frmContent.src = "comedy.xml";
		} else if (srcRelative == "comedy.xml") {
			frmContent.src = "ramblings.xml";
		} else if (srcRelative == "ramblings.xml") {
			frmContent.src = "android.xml";
		}
	}
}

function browserCheck() {
	if (BrowserDetect.browser == "Chrome") document.getElementById("container").src = "nochrome.html";
}

BrowserDetect.init();