OC.router_base_url = OC.webroot + '/index.php',
  OC.Router = {
  	// register your ajax requests to load after the loading of the routes
  	// has finished. otherwise you face problems with race conditions
  	registerLoadedCallback: function(callback){
  		this.routes_request.done(callback);
  	},
  	routes_request: $.ajax(OC.router_base_url + '/core/routes.json', {
  		dataType: 'json',
  		success: function(jsondata) {
  			if (jsondata.status === 'success') {
  				OC.Router.routes = jsondata.data;
  			}
  		}
  	}),
  	generate:function(name, opt_params) {
  		if (!('routes' in this)) {
  			if(this.routes_request.state() != 'resolved') {
  				console.warn('To avoid race conditions, please register a callback');// wait
  			}
  		}
  		if (!(name in this.routes)) {
  			throw new Error('The route "' + name + '" does not exist.');
  		}
  		var route = this.routes[name];
  		var params = opt_params || {};
  		var unusedParams = $.extend(true, {}, params);
  		var url = '';
  		var optional = true;
  		$(route.tokens).each(function(i, token) {
  			if ('text' === token[0]) {
  			    url = token[1] + url;
  			    optional = false;
  
  			    return;
  			}
  
  			if ('variable' === token[0]) {
  			    if (false === optional || !(token[3] in route.defaults)
  				    || ((token[3] in params) && params[token[3]] != route.defaults[token[3]])) {
  				var value;
  				if (token[3] in params) {
  				    value = params[token[3]];
  				    delete unusedParams[token[3]];
  				} else if (token[3] in route.defaults) {
  				    value = route.defaults[token[3]];
  				} else if (optional) {
  				    return;
  				} else {
  				    throw new Error('The route "' + name + '" requires the parameter "' + token[3] + '".');
  				}
  
  				var empty = true === value || false === value || '' === value;
  
  				if (!empty || !optional) {
  				    url = token[1] + encodeURIComponent(value).replace(/%2F/g, '/') + url;
  				}
  
  				optional = false;
  			    }
  
  			    return;
  			}
  
  			throw new Error('The token type "' + token[0] + '" is not supported.');
  		});
  		if (url === '') {
  			url = '/';
  		}
  
  		unusedParams = $.param(unusedParams);
  		if (unusedParams.length > 0) {
  			url += '?'+unusedParams;
  		}
  
  		return OC.router_base_url + url;
  	}
  };