// JavaScript Document

// To print the current browser stats on the page, include the line below in your HTML
/* <script type="text/javascript">document.write(currentBrowsertxt);</script> */

var validBrowser = false;
var validOS = false;
var validEnvironment = false;
var invalidEnvironment;
var currentBrowsertxt;
var siteURL = "http://www.ghorg.com/forum/"; // with trailing forward slash [/]
var defaultPage = "index.aspx";
var cssFolder = "/forum/css/";

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.userAgent,
			subString: "Chrome",
			identity: "Chrome"
		},
		{
			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();
validateEnvironment();

function validateEnvironment() {

	currentBrowsertxt = ("Detected Browser: " + BrowserDetect.browser + " <i>ver.</i> " + BrowserDetect.version + " on " + BrowserDetect.OS);	
	
	//browser &amp; version
		if (BrowserDetect.browser == "Firefox"  && BrowserDetect.version >= 2.0)   {validBrowser = true};
		if (BrowserDetect.browser == "Explorer" && BrowserDetect.version >= 6.0)   {validBrowser = true};
		if (BrowserDetect.browser == "Safari"   && BrowserDetect.version >= 412.0) {validBrowser = true};
		if (BrowserDetect.browser == "Opera"    && BrowserDetect.version >= 9.0)   {validBrowser = true};
		if (BrowserDetect.browser == "Chrome"   && BrowserDetect.version >= 0.2)   {validBrowser = true};
	
	//platform
		if (BrowserDetect.OS == "Windows"){validOS = true;} else if (BrowserDetect.OS == "Mac"){validOS = true;};
	
	//final OK
		if (validBrowser && validOS) {
			validEnvironment = true;
			}
			else {checkEnvironment()}
};

function checkEnvironment() {
	
	var homeCheck = 0;
		if (window.location == siteURL || window.location == siteURL+defaultPage){homeCheck = 1;}
	
	if (BrowserDetect.browser == "Explorer" && BrowserDetect.version < 7.0 && BrowserDetect.version >= 6.0) {
		IE6Warn = "<div class='IE6Warn'>";
		IE6Warn += "<b>You are currently using an old version of Internet Explorer.<br>";
		IE6Warn += "Please consider updating to <a href='http://www.microsoft.com/windows/downloads/ie/getitnow.mspx' target='_blank'>Internet Explorer 7</a>.</b>";
		IE6Warn += "</div>";
		
		MyObj = document.getElementById("BRwarn");
		if (MyObj && homeCheck){MyObj.innerHTML = IE6Warn;}
		};
		
	if (BrowserDetect.browser == "Explorer" && BrowserDetect.version >= 9.0 && BrowserDetect.version < 10.0) {
		IE8Warn = "<div class='IE8Warn'>";
		IE8Warn += "<b>This site works best in Internet Explorer 8.<br>";
		IE8Warn += "Please click the 'Emulate IE8' or 'Compatability Mode' button <br>if you experience problems with this site in Internet Explorer 9.</b>";
		IE8Warn += "</div>";
		
		MyObj = document.getElementById("BRwarn");
		if (MyObj && homeCheck){MyObj.innerHTML = IE8Warn;}
		};
	
	if (!validEnvironment) {
		
			invalidEnvironment =  "<div class=IBerror>";
			invalidEnvironment += "<b>Please check your browser and operating system...</b><br><br>"
			invalidEnvironment += "You are currently using an outdated or unsupported browser! <br><br>";
			invalidEnvironment += "<span style='font-size:11px; font-weight:normal'>In order to use this site, please update your computer with one of the following browsers:</span><br><br>";
			invalidEnvironment += "Internet Explorer 6.0 (or later) [<a href='http://www.microsoft.com/windows/downloads/ie/getitnow.mspx' target='_blank'>IE7 recommended</a>] <br>";
			invalidEnvironment += "Firefox 2.0 (or later) <br>";
			invalidEnvironment += "Safari 2.0.4 <span style='font-size:11px; font-weight:normal'>(419.3)</span> (or later) <br>";
			invalidEnvironment += "Opera 9.0 (or later) <br><br>";
			invalidEnvironment += "<span style='font-size:11px; font-weight:normal'>" + currentBrowsertxt + "</span>";
			invalidEnvironment += "</div>";

		
			MyObj = document.getElementById("BRerror");
			if (MyObj && homeCheck){MyObj.innerHTML=invalidEnvironment;}
		}
}
	
function getCSS() {
		//IE6
		if (BrowserDetect.browser == "Explorer" && BrowserDetect.version <= 6.0)   
			{document.write ("<link href='"+cssFolder+"IE6.css' rel='stylesheet' type='text/css' />")};
			
		//IE7	
		if (BrowserDetect.browser == "Explorer" && BrowserDetect.version >= 7.0 && BrowserDetect.version < 8.0)   
			{document.write ("<link href='"+cssFolder+"IE7.css' rel='stylesheet' type='text/css' />")};
			
		//IE8
		if (BrowserDetect.browser == "Explorer" && BrowserDetect.version >= 8.0) 
			{document.write ("<link href='"+cssFolder+"IE8.css' rel='stylesheet' type='text/css' />")};
			
		//FF2
		if (BrowserDetect.browser == "Firefox"  && BrowserDetect.version >= 2.0 && BrowserDetect.version < 3.0)   
			{document.write ("<link href='"+cssFolder+"FF2.css' rel='stylesheet' type='text/css' />")};
			
		//FF3
		if (BrowserDetect.browser == "Firefox"  && BrowserDetect.version >= 3.0)   
			{document.write ("<link href='"+cssFolder+"FF3.css' rel='stylesheet' type='text/css' />")};
			
		//OPR
		if (BrowserDetect.browser == "Opera"    && BrowserDetect.version >= 9.0)   
			{document.write ("<link href='"+cssFolder+"OPR.css' rel='stylesheet' type='text/css' />")};
			
		//SAF
		if (BrowserDetect.browser == "Safari"   && BrowserDetect.version >= 412.0) 
			{document.write ("<link href='"+cssFolder+"SAF.css' rel='stylesheet' type='text/css' />")};
			
		//CHR
		if (BrowserDetect.browser == "Chrome"   && BrowserDetect.version >= 0.2) 
			{document.write ("<link href='"+cssFolder+"CHR.css' rel='stylesheet' type='text/css' />")};
}

// END browser detect