A few handy functions to use with jQueryGo.

jquerygo-contrib.js

exports.jquerygocontrib = function () {	
	var $ = require('jquerygo');
	
	$.evaluate = function (functionToEvaluate, callback, args) {
		$.getPage(function (page) {
			page.evaluate(functionToEvaluate, callback, args);
		});
	};

	$.getlength = function (selector, callback) {
		$.evaluate(function (args) {
			return $(args.selector).length;
		}, function (err, returnVal) {
			callback(returnVal);
		}, {
			selector: selector
		});
	};

	$.followLink = function (selector, callback) {
		$.evaluate(function (args) {
			document.location = $(args.selector).attr('href');
		}, function (err, returnVal) {
			callback();
		}, {
			selector: selector
		});
	};
};