Develop/use a phoneGap app in a web browser by extending the navigator object to mimic the Cordova navigator object

extendNavigator.js

// check if we are running as a webapp or phonegap app
	if (typeof cordova == 'undefined') {
		// if webapp, extend navigator object to replace cordova's.
		navigator.notification = {
			alert : function(text, a, b, c) {
		        alert(text);
		    },
		    confirm : function(text, success) {
		        var response = confirm(text);
		        success(response);
		    },
		    vibrate : function(num) { return null },
		    prompt : function(text, success, a, b, defaultName) {
		        var name = prompt(text);
		        if (name.length == 0) name = defaultName;
		        var result = {
		            input1 : name
		        }
		        success(result);
		    }
		}

		navigator.globalization = {
			getPreferredLanguage : function(success, error) {
				var language = {
					value : navigator.language
				}
				if (language.value.length == 0) {
					language.value = 'en';
				} 
				success(language);
			}
		}
	}

Assumes that cordova.js is not included when running as a webapp