// Begin: browser and os detection

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.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"
		},
		{		// 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();

// End: browser and os detection


function ClientSystemStatus(){
	this.OsOk = true;
	this.BrowserOk = true;
	this.ActivexOk = true;
	this.WmpOk = true;
	this.FirefoxActivexResponsive = true;
	
	if(BrowserDetect.OS != "Windows"){ this.OsOk = false; } // os?
	if(!IeOk() && !FfOk()){ this.BrowserOk = false; } // browser?
	if(!isActiveXInstalled()){ this.ActivexOk = false; } // activeX?
	if(!hasWMP9()){ this.WmpOk = false; } // Wmp?
	
	// try to detect firefox 1.5.0.6/7 ActiveX failure
	if(FfOk()){
		try{
			var test_playlist = $("WmpRadioPlayer").newPlaylist("","");
		}
		catch(e){
			this.FirefoxActivexResponsive = false;
		}
	}
}

function IeOk(){
	if(BrowserDetect.browser=="Explorer" && BrowserDetect.version >= 5.5){
		return true;
	}else{
		return false;
	}
}

function FfOk(){
	if(BrowserDetect.browser=="Firefox" && BrowserDetect.version >= 1.5){
		return true;
	}else{
		return false;
	}
}


function isActiveXInstalled() {
	// Checks if ActiveX is installed
	var geckoax=new Object();
	geckoax.installed=false;
	var isInstalled=false;
	
	if (navigator.plugins && navigator.plugins.length)
	{
		for (x=0; x<navigator.plugins.length; x++)
		{
			if (navigator.plugins[x].name.indexOf('ActiveX') != -1 && window.GeckoActiveXObject) {
				geckoax.installed=true;
			}
		}
	}
		
	if (window.ActiveXObject || geckoax.installed){
		isInstalled=true;
	} else {
		isInstalled=false;
	}

	return isInstalled;
}


function hasWMP9(){
	var wm_player;
	try{
		if(window.ActiveXObject){
			wm_player = new ActiveXObject("WMPlayer.OCX.7");
		}else if(window.GeckoActiveXObject){
			wm_player = new GeckoActiveXObject("WMPlayer.OCX.7");
		}
		if(wm_player && parseInt(wm_player.versionInfo) >= 9){
			return true;
		}else{
			return false;
		}
	}catch(e){ return false; }
}