var $D; var $E;

$D = YAHOO.util.Dom;
$E = YAHOO.util.Event;

function fixExternalLinks() {
	var lnks = document.getElementsByTagName('a');
	for(var i=lnks.length; i-->0;)
		if(lnks[i].getAttribute('rel') == 'external')
			lnks[i].target = '_blank';
			
}

function sample_show(imageurl)
{
	var img = document.getElementById('mainimage');
	if(!img || !imageurl) return;
	
	img.src = imageurl;
}

var Site = {
	require: function(libraryName) {
		document.write('<script type="text/javascript" src="'+libraryName+'"></script>');
	},
	
	emptyfunction : function() {},

	load: function() {
		var scriptTags = document.getElementsByTagName("script");
		for(var i=0;i<scriptTags.length;i++) {
			if(scriptTags[i].src && scriptTags[i].src.match(/bishop\.1\.js(\?.*)?$/)) {
				var path = scriptTags[i].src.replace(/bishop\.1\.js(\?.*)?$/,'');

				var v = parseInt(BrowserDetect.version);
				if(v == 'NaN') v = 0;
				
				if(BrowserDetect.browser == 'Explorer' && v < 7)
				{
					this.link('ui/cols2.ie.css','css');
					this.link('ui/ie.fix.css','css');
					this.link(path + 'pngfix.js', 'script');
				}
				
				if(typeof(fixExternalLinks) == typeof(this.emptyfunction))
					this.addLoadEvent( function() { fixExternalLinks(); } );
					
				break;
			}
		}
	},

	link: function(resource, type) {
		if(!type) type = 'script';
		
		switch(type)
		{
			case 'script' :	
				document.write('<script type="text/javascript" src="'+resource+'"></script>');
				break;
			case 'css' :
				document.write('<link rel="stylesheet" type="text/css" href="'+resource+'" />');
				break;
		}
	},
	
	addLoadEvent : function(func){
		var oldonload = window.onload;
		
		if (typeof window.onload != 'function') {
			window.onload = func;
		} else {
			window.onload = function() {
				oldonload();
				func();
			}
		}
	}
}

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();
Site.load();