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"
		},
		{
			string: navigator.userAgent,
			subString: "Firefox",
			identity: "Firefox"
		},
		{
			string: navigator.userAgent,
			subString: "MSIE",
			identity: "Explorer",
			versionSearch: "MSIE"
		},
	],
	dataOS : [
		{
			string: navigator.platform,
			subString: "Win",
			identity: "Windows"
		},
		{
			string: navigator.platform,
			subString: "Mac",
			identity: "Mac"
		},
	]

};
BrowserDetect.init();

function displaybrowser(){
if(BrowserDetect.browser == "Firefox"){
	document.write('<p>To make the wallpaper your desktop background, right click on the image and choose Set as Desktop Background</p>');
}
else if(BrowserDetect.browser == "Explorer"){
	document.write('<p>To make the wallpaper your desktop background, right click on the image and choose Set as Background</p>');
}
else if(BrowserDetect.browser == "Safari"){
	document.write('<p>To make the wallpaper your desktop background, right click on the image and choose Save image to Desktop. In Windows right click on the desktop and select properties, click the desktop tab and then click on the browse button. Click on the image you have downloaded to make it your background image </p><p>On a Mac right click, or control click, on the image and choose Save image to Desktop, right click, or control click, on the downloaded image and select make background image.</p>');
}
}