I am trying to build with phonegap a website which uses backbone.js. However, it seems that the calling of php files it doesnt work. I am trying to get data with the above initialization:

	var ProfileList = Backbone.Collection.extend({
						model: ProfileModel,
						url: 'data.php'
Is there a chance that url causing problems to phonegap?? In eclipse log files I am receiving the above:

11-12 16:09:21.665: E/Web Console(31377): Uncaught ReferenceError: Backbone is not defined at file:///android_asset/www/scripts/name.js:8