/*************************************************************************************
*
*   BROWSER DECTION
*
*       Determines what browser is running, What OS is inuse and displays an alert if
*   the browser is not supported. This was created by Scott MacLellan.
*
*   BrowserDetect is not by Scott MacLellan and was provided by 
*   http://www.quirksmode.org/js/detect.html.
*
*************************************************************************************/

// Syntax Description

// The [] define an array literal, and all of its elements are object literals. 
// Each object literal is enclosed in curly braces {} and contains a few properties 
// (name: value,). Note that a comma between the objects and between the properties 
// is required, but that the last comma is always forbidden.

// FROM http://www.quirksmode.org/js/detect.html
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();


// Created by Scott
var isIE = (BrowserDetect.browser == "Explorer");
var isMozilla = ((BrowserDetect.browser == "Mozilla") ||(BrowserDetect.browser == "Firefox"));
var isSafari = (BrowserDetect.browser == "Safari");

var isWin = (BrowserDetect.OS == "Windows");
var isMac = (BrowserDetect.OS == "Mac");

if( isWin && !(isIE || isMozilla))
{
    alert(  "Please use Internet Explorer 7 or Mozilla to browse this site.\n" +
            "Other web browsers are not considered compatible.");
}
if( isMac && !isMozilla)
{
    alert(  "Please use Mozilla to browse this site.\n" +
            "Other web browsers are not considered compatible.");
}
//alert ( "Debug\n\nBrowser: " + BrowserDetect.browser + 
//        "\nVersion: " + BrowserDetect.version +
//        "\nOS: " + BrowserDetect.OS);