/* PicLens Autoloader Script
	Copyright (c) R. Sivaramakrishnan
	
	Browser Detection functionality courtesy quirksmode.org
*/

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"
		},
		{
			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 initPicLens() {

	/*
	
	var hashIndex = location.href.indexOf('#');
	hashIndex++;
	
	if(hashIndex)
		var requestedAlbum = location.href.substr(hashIndex);

	*/
	if(PicLensLite.hasClient()) {
		// Client has PicLens installed so fire the Client ...
		launchClient();
	} else {
		// Client does not have PicLens so show message - based on whether it is installable or not ...
		showPluginMessage();
	}
}

function launchClient() {
	PicLensLite.start({feedUrl:'http://www.sringeri.net/gapp/feed.php?album=1'});
	return true;
}

function pluginIsInstallable() {
	BrowserDetect.init();
		// Se if the win32 browser is compatible
		if(BrowserDetect.browser == 'Firefox' && BrowserDetect.version>=2) // Firefox versions 2.0 and above are generally supported
			return(true);

		else if(BrowserDetect.browser == 'Explorer') // Internet Explorer is supported - I think so ...!?
			return(true);
			
		else if(BrowserDetect.browser == 'Safari' && BrowserDetect.OS == 'Mac')
			return(true);
		
		else
			return(false);	
}

function showPluginMessage() {
	if(pluginIsInstallable()) {
		var plugin = document.getElementById('attention_installPlugin');
	} else {
		var plugin = document.getElementById('optimised_forCooliris');
	}
	
//	alert(plugin);
	plugin.style.display = 'block';
	return(true);
}

if(window.addEventListener){ // Mozilla, Netscape, Firefox
	window.addEventListener('load',initPicLens, false);
} else { // IE
	window.attachEvent('onload', initPicLens);
}


// For Debugging Purposrs

function vardump(obj) {
  str='';
  for(prop in obj)
  {
    str+=prop + " value :"+ obj[prop]+"\n";
  }
  return(str);
}