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();

	function addOptionProvider() {
		window.external.AddSearchProvider("http://www.vinden.nl/Addons/Includes/xml/provider.php");
		closeOptionProvider();
	}
	function closeOptionProvider() {
		document.getElementById('addsearch').style.display = 'none';
		document.cookie = "cki_ie7top=hidden; expires=Thu, 2 Aug 2500 20:47:11 UTC; path=/; domain=.vinden.nl;";
	}

	if (window.external && ("AddSearchProvider" in window.external)) {
		if (!window.external.IsSearchProviderInstalled('http://www.vinden.nl/') && document.cookie.indexOf("cki_ie7top") == -1) {
			writeHTML = '<div style="position: absolute; top: 2px; right: 2px; width: 198px;" id="addsearch">';
			writeHTML += '<a href="#" onclick="addOptionProvider(); return false;">';
			writeHTML += '<img src="http://images.vinden.nl/add_';
			writeHTML += (BrowserDetect.browser == "Explorer" ? 'ie7' : 'firefox') + '.png" width="176" width="48" border="0">';
			writeHTML += '<a href="#" onclick="closeOptionProvider();addOptionProvider(); return false;">';
			writeHTML += '<img src="http://images.vinden.nl/cross.gif" width="17" height="13" border="0" style="margin-top:2px;vertical-align:top"></a></div>';
			document.write(writeHTML);
		}
	}