function getPlataforma() {
	var userAgentAtual = navigator.userAgent,
		retorno = "0";
	try {
		var plataformas = [{
			nome: "Windows 3.11",
			regex: /Win16/
		}, {
			nome: "Windows 95",
			regex: /(Windows 95|Win95|Windows_95)/
		}, {
			nome: "Windows ME",
			regex: /(Win 9x 4.90|Windows ME)/
		}, {
			nome: "Windows 98",
			regex: /(Windows 98|Win98)/
		}, {
			nome: "Windows CE",
			regex: /Windows CE/
		}, {
			nome: "Windows 2000",
			regex: /(Windows NT 5.0|Windows 2000)/
		}, {
			nome: "Windows XP",
			regex: /(Windows NT 5.1|Windows XP)/
		}, {
			nome: "Windows Server 2003",
			regex: /Windows NT 5.2/
		}, {
			nome: "Windows Vista",
			regex: /Windows NT 6.0/
		}, {
			nome: "Windows 7",
			regex: /(Windows 7|Windows NT 6.1)/
		}, {
			nome: "Windows 8.1",
			regex: /(Windows 8.1|Windows NT 6.3)/
		}, {
			nome: "Windows 8",
			regex: /(Windows 8|Windows NT 6.2)/
		}, {
			nome: "Windows NT 4.0",
			regex: /(Windows NT 4.0|WinNT4.0|WinNT|Windows NT)/
		}, {
			nome: "Windows ME",
			regex: /Windows ME/
		}, {
			nome: "Android",
			regex: /Android/
		},{
			nome: "iPhone",
			regex: /(iPad|iPhone|iPod)/
		}, {
			nome: "Open BSD",
			regex: /OpenBSD/
		}, {
			nome: "Sun OS",
			regex: /SunOS/
		}, {
			nome: "Linux",
			regex: /(Linux|X11)/
		},   {
			nome: "IOS",
			regex: /(Mac OS X|MacPPC|MacIntel|Mac_PowerPC|Macintosh)/
		}, {
			nome: "QNX",
			regex: /QNX/
		}, {
			nome: "UNIX",
			regex: /UNIX/
		}, {
			nome: "BeOS",
			regex: /BeOS/
		}, {
			nome: "OS/2",
			regex: /OS\/2/
		}, {
			nome: "Search Bot",
			regex: /(nuhk|Googlebot|Yammybot|Openbot|Slurp|MSNBot|Ask Jeeves\/Teoma|ia_archiver)/
		}];
		for (var i in plataformas) {
			var plataforma = plataformas[i];
			if (plataforma.regex.test(userAgentAtual)) {
				retorno = plataforma;
				break
			}
		}
		return retorno
	} catch (erro) {
		console.log('erro');
		return ""
	}
}