var language_detected_is_set	= jQuery.cookie("lang_det_js_cookie");
if(language_detected_is_set == null){
	var language_detected
	jQuery.ajax({ 
		url: "http://ajaxhttpheaders.appspot.com", 
		dataType: 'jsonp', 
		success: function(headers) {
			var language = headers['Accept-Language'];
			if(language != ''){
				//alert(language);
				var substr = language.split('-');
				language_detected = substr[0];
				if (language_detected.indexOf(",") >= 0){				
					var substr_two = language_detected.split(',');
					var language_detected = substr_two[0];
				}			 
				
				if(language_detected != 'de'){
					language_detected = 'en';
				}				
				jQuery.cookie("lang_det_js_cookie", language_detected, { expires: 30, path: '/' } );
				//alert(language_detected);
				var redirect_url = 'http://www.learntube.de/'+language_detected+'/';
				//alert('redirect_browser');
				window.location = redirect_url;
			}
		}
	});
}else{
	//do nothing here otherwise user will not be able to see homepage/page in other language
}